always use template strings instead of string concatenation

src/anonymize.js

@@ -9,7 +9,7 @@ sqlInit.dbReady.then(async () => {
         const resp = await backupService.anonymize();
 
         if (resp.success) {
-            console.log("Anonymized file has been saved to: " + resp.anonymizedFilePath);
+            console.log(`Anonymized file has been saved to: ${resp.anonymizedFilePath}`);
 
             process.exit(0);
         } else {

src/app.js

@@ -66,12 +66,12 @@ const sessionParser = session({
     name: 'trilium.sid',
     store: new FileStore({
         ttl: 30 * 24 * 3600,
-        path: dataDir.TRILIUM_DATA_DIR + '/sessions'
+        path: `${dataDir.TRILIUM_DATA_DIR}/sessions`
     })
 });
 app.use(sessionParser);
 
-app.use(favicon(__dirname + '/../images/app-icons/win/icon.ico'));
+app.use(favicon(`${__dirname}/../images/app-icons/win/icon.ico`));
 
 require('./routes/routes').register(app);
 
@@ -91,7 +91,7 @@ app.use((err, req, res, next) => {
 
 // catch 404 and forward to error handler
 app.use((req, res, next) => {
-    const err = new Error('Router not found for request ' + req.url);
+    const err = new Error(`Router not found for request ${req.url}`);
     err.status = 404;
     next(err);
 });

src/becca/becca_service.js

@@ -75,7 +75,7 @@ function getNoteTitle(childNoteId, parentNoteId) {
 
     const branch = parentNote ? becca.getBranchFromChildAndParent(childNote.noteId, parentNote.noteId) : null;
 
-    return ((branch && branch.prefix) ? `${branch.prefix} - ` : '') + title;
+    return `${(branch && branch.prefix) ? `${branch.prefix} - ` : ''}${title}`;
 }
 
 function getNoteTitleArrayForPath(notePathArray) {

src/becca/entities/abstract_entity.js

@@ -31,7 +31,7 @@ class AbstractEntity {
         let contentToHash = "";
 
         for (const propertyName of this.constructor.hashedProperties) {
-            contentToHash += "|" + this[propertyName];
+            contentToHash += `|${this[propertyName]}`;
         }
 
         if (isDeleted) {

src/becca/entities/branch.js

@@ -185,7 +185,7 @@ class Branch extends AbstractEntity {
 
             // first delete children and then parent - this will show up better in recent changes
 
-            log.info("Deleting note " + note.noteId);
+            log.info(`Deleting note ${note.noteId}`);
 
             this.becca.notes[note.noteId].isBeingDeleted = true;
 

src/becca/entities/note.js

@@ -211,7 +211,7 @@ class Note extends AbstractEntity {
                 return undefined;
             }
             else {
-                throw new Error("Cannot find note content for noteId=" + this.noteId);
+                throw new Error(`Cannot find note content for noteId=${this.noteId}`);
             }
         }
 
@@ -304,7 +304,7 @@ class Note extends AbstractEntity {
 
         sql.upsert("note_contents", "noteId", pojo);
 
-        const hash = utils.hash(this.noteId + "|" + pojo.content.toString());
+        const hash = utils.hash(`${this.noteId}|${pojo.content.toString()}`);
 
         entityChangesService.addEntityChange({
             entityName: 'note_contents',
@@ -739,22 +739,22 @@ class Note extends AbstractEntity {
      */
     getFlatText() {
         if (!this.flatTextCache) {
-            this.flatTextCache = this.noteId + ' ' + this.type + ' ' + this.mime + ' ';
+            this.flatTextCache = `${this.noteId} ${this.type} ${this.mime} `;
 
             for (const branch of this.parentBranches) {
                 if (branch.prefix) {
-                    this.flatTextCache += branch.prefix + ' ';
+                    this.flatTextCache += `${branch.prefix} `;
                 }
             }
 
-            this.flatTextCache += this.title + ' ';
+            this.flatTextCache += `${this.title} `;
 
             for (const attr of this.getAttributes()) {
                 // it's best to use space as separator since spaces are filtered from the search string by the tokenization into words
-                this.flatTextCache += (attr.type === 'label' ? '#' : '~') + attr.name;
+                this.flatTextCache += `${attr.type === 'label' ? '#' : '~'}${attr.name}`;
 
                 if (attr.value) {
-                    this.flatTextCache += '=' + attr.value;
+                    this.flatTextCache += `=${attr.value}`;
                 }
 
                 this.flatTextCache += ' ';

src/becca/entities/note_revision.js

@@ -81,7 +81,7 @@ class NoteRevision extends AbstractEntity {
                 return undefined;
             }
             else {
-                throw new Error("Cannot find note revision content for noteRevisionId=" + this.noteRevisionId);
+                throw new Error(`Cannot find note revision content for noteRevisionId=${this.noteRevisionId}`);
             }
         }
 
@@ -124,7 +124,7 @@ class NoteRevision extends AbstractEntity {
 
         sql.upsert("note_revision_contents", "noteRevisionId", pojo);
 
-        const hash = utils.hash(this.noteRevisionId + "|" + pojo.content.toString());
+        const hash = utils.hash(`${this.noteRevisionId}|${pojo.content.toString()}`);
 
         entityChangesService.addEntityChange({
             entityName: 'note_revision_contents',

src/etapi/validators.js

@@ -66,7 +66,7 @@ function isNoteType(obj) {
     const noteTypes = noteTypeService.getNoteTypeNames();
 
     if (!noteTypes.includes(obj)) {
-        return `'${obj}' is not a valid note type, allowed types are: ` + noteTypes.join(", ");
+        return `'${obj}' is not a valid note type, allowed types are: ${noteTypes.join(", ")}`;
     }
 }
 

src/public/app/components/app_context.js

@@ -96,7 +96,7 @@ class AppContext extends Component {
     /** @returns {Promise} */
     triggerCommand(name, data = {}) {
         for (const executor of this.components) {
-            const fun = executor[name + "Command"];
+            const fun = executor[`${name}Command`];
 
             if (fun) {
                 return executor.callMethod(fun, data);

src/public/app/components/component.js

@@ -13,7 +13,7 @@ import utils from '../services/utils.js';
  */
 export default class Component {
     constructor() {
-        this.componentId = this.sanitizedClassName + '-' + utils.randomString(8);
+        this.componentId = `${this.sanitizedClassName}-${utils.randomString(8)}`;
         /** @type Component[] */
         this.children = [];
         this.initialized = null;
@@ -44,8 +44,8 @@ export default class Component {
     handleEvent(name, data) {
         try {
             const callMethodPromise = this.initialized
-                ? this.initialized.then(() => this.callMethod(this[name + 'Event'], data))
-                : this.callMethod(this[name + 'Event'], data);
+                ? this.initialized.then(() => this.callMethod(this[`${name}Event`], data))
+                : this.callMethod(this[`${name}Event`], data);
 
             const childrenPromise = this.handleEventInChildren(name, data);
 
@@ -84,7 +84,7 @@ export default class Component {
 
     /** @returns {Promise} */
     triggerCommand(name, data = {}) {
-        const fun = this[name + 'Command'];
+        const fun = this[`${name}Command`];
 
         if (fun) {
             return this.callMethod(fun, data);

src/public/app/components/entrypoints.js

@@ -150,7 +150,7 @@ export default class Entrypoints extends Component {
             ipcRenderer.send('create-extra-window', {notePath, hoistedNoteId});
         }
         else {
-            const url = window.location.protocol + '//' + window.location.host + window.location.pathname + '?extra=1#' + notePath;
+            const url = `${window.location.protocol}//${window.location.host}${window.location.pathname}?extra=1#${notePath}`;
 
             window.open(url, '', 'width=1000,height=800');
         }
@@ -172,12 +172,12 @@ export default class Entrypoints extends Component {
         if (note.mime.endsWith("env=frontend")) {
             await bundleService.getAndExecuteBundle(note.noteId);
         } else if (note.mime.endsWith("env=backend")) {
-            await server.post('script/run/' + note.noteId);
+            await server.post(`script/run/${note.noteId}`);
         } else if (note.mime === 'text/x-sqlite;schema=trilium') {
-            const resp = await server.post("sql/execute/" + note.noteId);
+            const resp = await server.post(`sql/execute/${note.noteId}`);
 
             if (!resp.success) {
-                toastService.showError("Error occurred while executing SQL query: " + resp.message);
+                toastService.showError(`Error occurred while executing SQL query: ${resp.message}`);
             }
 
             await appContext.triggerEvent('sqlQueryResults', {ntxId: ntxId, results: resp.results});

src/public/app/components/tab_manager.js

@@ -126,7 +126,7 @@ export default class TabManager extends Component {
 
         if (window.history.length === 0 // first history entry
             || (activeNoteContext && activeNoteContext.notePath !== treeService.getHashValueFromAddress()[0])) {
-            const url = '#' + (activeNoteContext.notePath || "") + "-" + activeNoteContext.ntxId;
+            const url = `#${activeNoteContext.notePath || ""}-${activeNoteContext.ntxId}`;
 
             // using pushState instead of directly modifying document.location because it does not trigger hashchange
             window.history.pushState(null, "", url);

src/public/app/desktop.js

@@ -112,7 +112,7 @@ if (utils.isElectron()) {
 
         if (hasText) {
             const shortenedSelection = params.selectionText.length > 15
-                ? (params.selectionText.substr(0, 13) + "…")
+                ? (`${params.selectionText.substr(0, 13)}…`)
                 : params.selectionText;
 
             items.push({

src/public/app/entities/note_short.js

@@ -119,7 +119,7 @@ class NoteShort {
 
     async getContent() {
         // we're not caching content since these objects are in froca and as such pretty long lived
-        const note = await server.get("notes/" + this.noteId);
+        const note = await server.get(`notes/${this.noteId}`);
 
         return note.content;
     }
@@ -813,7 +813,7 @@ class NoteShort {
             return await bundleService.getAndExecuteBundle(this.noteId);
         }
         else if (env === "backend") {
-            return await server.post('script/run/' + this.noteId);
+            return await server.post(`script/run/${this.noteId}`);
         }
         else {
             throw new Error(`Unrecognized env type ${env} for note ${this.noteId}`);

src/public/app/services/attribute_autocomplete.js

@@ -52,7 +52,7 @@ async function initLabelValueAutocomplete({ $el, open, nameCallback }) {
         return;
     }
 
-    const attributeValues = (await server.get('attributes/values/' + encodeURIComponent(attributeName)))
+    const attributeValues = (await server.get(`attributes/values/${encodeURIComponent(attributeName)}`))
         .map(attribute => ({ value: attribute }));
 
     if (attributeValues.length === 0) {

src/public/app/services/attribute_parser.js

@@ -125,9 +125,7 @@ function parse(tokens, str, allowEmptyRelations = false) {
         startIndex = Math.max(0, startIndex - 20);
         endIndex = Math.min(str.length, endIndex + 20);
 
-        return '"' + (startIndex !== 0 ? "..." : "")
-            + str.substr(startIndex, endIndex - startIndex)
-            + (endIndex !== str.length ? "..." : "") + '"';
+        return `"${startIndex !== 0 ? "..." : ""}${str.substr(startIndex, endIndex - startIndex)}${endIndex !== str.length ? "..." : ""}"`;
     }
 
     for (let i = 0; i < tokens.length; i++) {

src/public/app/services/attribute_renderer.js

@@ -6,7 +6,7 @@ async function renderAttribute(attribute, renderIsInheritable) {
     const $attr = $("<span>");
 
     if (attribute.type === 'label') {
-        $attr.append(document.createTextNode('#' + attribute.name + isInheritable));
+        $attr.append(document.createTextNode(`#${attribute.name}${isInheritable}`));
 
         if (attribute.value) {
             $attr.append('=');
@@ -19,11 +19,11 @@ async function renderAttribute(attribute, renderIsInheritable) {
 
         // when the relation has just been created then it might not have a value
         if (attribute.value) {
-            $attr.append(document.createTextNode('~' + attribute.name + isInheritable + "="));
+            $attr.append(document.createTextNode(`~${attribute.name}${isInheritable}=`));
             $attr.append(await createNoteLink(attribute.value));
         }
     } else {
-        ws.logError("Unknown attr type: " + attribute.type);
+        ws.logError(`Unknown attr type: ${attribute.type}`);
     }
 
     return $attr;
@@ -34,16 +34,16 @@ function formatValue(val) {
         return val;
     }
     else if (!val.includes('"')) {
-        return '"' + val + '"';
+        return `"${val}"`;
     }
     else if (!val.includes("'")) {
-        return "'" + val + "'";
+        return `'${val}'`;
     }
     else if (!val.includes("`")) {
-        return "`" + val + "`";
+        return `\`${val}\``;
     }
     else {
-        return '"' + val.replace(/"/g, '\\"') + '"';
+        return `"${val.replace(/"/g, '\\"')}"`;
     }
 }
 
@@ -55,7 +55,7 @@ async function createNoteLink(noteId) {
     }
 
     return $("<a>", {
-        href: '#root/' + noteId,
+        href: `#root/${noteId}`,
         class: 'reference-link',
         'data-note-path': noteId
     })

src/public/app/services/branches.js

@@ -116,10 +116,10 @@ async function deleteNotes(branchIdsToDelete, forceDeleteAllClones = false) {
         const branch = froca.getBranch(branchIdToDelete);
 
         if (deleteAllClones) {
-            await server.remove(`notes/${branch.noteId}` + query);
+            await server.remove(`notes/${branch.noteId}${query}`);
         }
         else {
-            await server.remove(`branches/${branchIdToDelete}` + query);
+            await server.remove(`branches/${branchIdToDelete}${query}`);
         }
     }
 
@@ -186,7 +186,7 @@ ws.subscribeToMessages(async message => {
         toastService.closePersistent(message.taskId);
         toastService.showError(message.message);
     } else if (message.type === 'taskProgressCount') {
-        toastService.showPersistent(makeToast(message.taskId, "Delete notes in progress: " + message.progressCount));
+        toastService.showPersistent(makeToast(message.taskId, `Delete notes in progress: ${message.progressCount}`));
     } else if (message.type === 'taskSucceeded') {
         const toast = makeToast(message.taskId, "Delete finished successfully.");
         toast.closeAfter = 5000;
@@ -204,7 +204,7 @@ ws.subscribeToMessages(async message => {
         toastService.closePersistent(message.taskId);
         toastService.showError(message.message);
     } else if (message.type === 'taskProgressCount') {
-        toastService.showPersistent(makeToast(message.taskId, "Undeleting notes in progress: " + message.progressCount));
+        toastService.showPersistent(makeToast(message.taskId, `Undeleting notes in progress: ${message.progressCount}`));
     } else if (message.type === 'taskSucceeded') {
         const toast = makeToast(message.taskId, "Undeleting notes finished successfully.");
         toast.closeAfter = 5000;
@@ -235,7 +235,7 @@ async function cloneNoteToNote(childNoteId, parentNoteId, prefix) {
 
 // beware that first arg is noteId and second is branchId!
 async function cloneNoteAfter(noteId, afterBranchId) {
-    const resp = await server.put('notes/' + noteId + '/clone-after/' + afterBranchId);
+    const resp = await server.put(`notes/${noteId}/clone-after/${afterBranchId}`);
 
     if (!resp.success) {
         toastService.showError(resp.message);

src/public/app/services/bundle.js

@@ -5,7 +5,7 @@ import froca from "./froca.js";
 import utils from "./utils.js";
 
 async function getAndExecuteBundle(noteId, originEntity = null) {
-    const bundle = await server.get('script/bundle/' + noteId);
+    const bundle = await server.get(`script/bundle/${noteId}`);
 
     return await executeBundle(bundle, originEntity);
 }

src/public/app/services/clipboard.js

@@ -30,7 +30,7 @@ async function pasteAfter(afterBranchId) {
         // copy will keep clipboardBranchIds and clipboardMode so it's possible to paste into multiple places
     }
     else {
-        toastService.throwError("Unrecognized clipboard mode=" + clipboardMode);
+        toastService.throwError(`Unrecognized clipboard mode=${clipboardMode}`);
     }
 }
 
@@ -57,7 +57,7 @@ async function pasteInto(parentBranchId) {
         // copy will keep clipboardBranchIds and clipboardMode, so it's possible to paste into multiple places
     }
     else {
-        toastService.throwError("Unrecognized clipboard mode=" + clipboardMode);
+        toastService.throwError(`Unrecognized clipboard mode=${clipboardMode}`);
     }
 }
 
@@ -71,7 +71,7 @@ async function copy(branchIds) {
         const links = [];
 
         for (const branch of froca.getBranches(clipboardBranchIds)) {
-            const $link = await linkService.createNoteLink(branch.parentNoteId + '/' + branch.noteId, { referenceLink: true });
+            const $link = await linkService.createNoteLink(`${branch.parentNoteId}/${branch.noteId}`, { referenceLink: true });
             links.push($link[0].outerHTML);
         }
 

src/public/app/services/css_class_manager.js

@@ -11,7 +11,7 @@ function createClassForColor(color) {
         return "";
     }
 
-    const className = 'color-' + normalizedColorName;
+    const className = `color-${normalizedColorName}`;
 
     if (!registeredClasses.has(className)) {
         $("head").append(`<style>.${className} { color: ${color} !important; }</style>`);

src/public/app/services/date_notes.js

@@ -4,7 +4,7 @@ import ws from "./ws.js";
 
 /** @returns {NoteShort} */
 async function getInboxNote() {
-    const note = await server.get('special-notes/inbox/' + dayjs().format("YYYY-MM-DD"), "date-note");
+    const note = await server.get(`special-notes/inbox/${dayjs().format("YYYY-MM-DD")}`, "date-note");
 
     return await froca.getNote(note.noteId);
 }
@@ -16,7 +16,7 @@ async function getTodayNote() {
 
 /** @returns {NoteShort} */
 async function getDayNote(date) {
-    const note = await server.get('special-notes/days/' + date, "date-note");
+    const note = await server.get(`special-notes/days/${date}`, "date-note");
 
     await ws.waitForMaxKnownEntityChangeId();
 
@@ -25,7 +25,7 @@ async function getDayNote(date) {
 
 /** @returns {NoteShort} */
 async function getWeekNote(date) {
-    const note = await server.get('special-notes/weeks/' + date, "date-note");
+    const note = await server.get(`special-notes/weeks/${date}`, "date-note");
 
     await ws.waitForMaxKnownEntityChangeId();
 
@@ -34,7 +34,7 @@ async function getWeekNote(date) {
 
 /** @returns {NoteShort} */
 async function getMonthNote(month) {
-    const note = await server.get('special-notes/months/' + month, "date-note");
+    const note = await server.get(`special-notes/months/${month}`, "date-note");
 
     await ws.waitForMaxKnownEntityChangeId();
 
@@ -43,7 +43,7 @@ async function getMonthNote(month) {
 
 /** @returns {NoteShort} */
 async function getYearNote(year) {
-    const note = await server.get('special-notes/years/' + year, "date-note");
+    const note = await server.get(`special-notes/years/${year}`, "date-note");
 
     await ws.waitForMaxKnownEntityChangeId();
 

src/public/app/services/froca.js

@@ -41,7 +41,7 @@ class Froca {
     }
 
     async loadSubTree(subTreeNoteId) {
-        const resp = await server.get('tree?subTreeNoteId=' + subTreeNoteId);
+        const resp = await server.get(`tree?subTreeNoteId=${subTreeNoteId}`);
 
         this.addResp(resp);
 
@@ -176,7 +176,7 @@ class Froca {
             return;
         }
 
-        const {searchResultNoteIds, highlightedTokens, error} = await server.get('search-note/' + note.noteId);
+        const {searchResultNoteIds, highlightedTokens, error} = await server.get(`search-note/${note.noteId}`);
 
         if (!Array.isArray(searchResultNoteIds)) {
             throw new Error(`Search note '${note.noteId}' failed: ${searchResultNoteIds}`);
@@ -192,7 +192,7 @@ class Froca {
 
         searchResultNoteIds.forEach((resultNoteId, index) => branches.push({
             // branchId should be repeatable since sometimes we reload some notes without rerendering the tree
-            branchId: "virt-" + note.noteId + '-' + resultNoteId,
+            branchId: `virt-${note.noteId}-${resultNoteId}`,
             noteId: resultNoteId,
             parentNoteId: note.noteId,
             notePosition: (index + 1) * 10,
@@ -314,7 +314,7 @@ class Froca {
      */
     async getNoteComplement(noteId) {
         if (!this.noteComplementPromises[noteId]) {
-            this.noteComplementPromises[noteId] = server.get('notes/' + noteId)
+            this.noteComplementPromises[noteId] = server.get(`notes/${noteId}`)
                 .then(row => new NoteComplement(row))
                 .catch(e => console.error(`Cannot get note complement for note '${noteId}'`));
 

src/public/app/services/frontend_script_api.js

@@ -137,7 +137,7 @@ function FrontendScriptApi(startNote, currentNote, originEntity = null, $contain
 
         return params.map(p => {
             if (typeof p === "function") {
-                return "!@#Function: " + p.toString();
+                return `!@#Function: ${p.toString()}`;
             }
             else {
                 return p;
@@ -173,7 +173,7 @@ function FrontendScriptApi(startNote, currentNote, originEntity = null, $contain
             return ret.executionResult;
         }
         else {
-            throw new Error("server error: " + ret.error);
+            throw new Error(`server error: ${ret.error}`);
         }
     };
 
@@ -564,7 +564,7 @@ function FrontendScriptApi(startNote, currentNote, originEntity = null, $contain
     this.log = message => {
         const {noteId} = this.startNote;
 
-        message = utils.now() + ": " + message;
+        message = `${utils.now()}: ${message}`;
 
         console.log(`Script ${noteId}: ${message}`);
 

src/public/app/services/glob.js

@@ -49,12 +49,12 @@ function setupGlobs() {
             message += 'No details available';
         } else {
             message += [
-                'Message: ' + msg,
-                'URL: ' + url,
-                'Line: ' + lineNo,
-                'Column: ' + columnNo,
-                'Error object: ' + JSON.stringify(error),
-                'Stack: ' + (error && error.stack)
+                `Message: ${msg}`,
+                `URL: ${url}`,
+                `Line: ${lineNo}`,
+                `Column: ${columnNo}`,
+                `Error object: ${JSON.stringify(error)}`,
+                `Stack: ${error && error.stack}`
             ].join(', ');
         }
 

src/public/app/services/hoisted_note.js

@@ -44,7 +44,7 @@ async function checkNoteAccess(notePath, noteContext) {
     const resolvedNotePath = await treeService.resolveNotePath(notePath, noteContext.hoistedNoteId);
 
     if (!resolvedNotePath) {
-        console.log("Cannot activate " + notePath);
+        console.log(`Cannot activate ${notePath}`);
         return false;
     }
 

src/public/app/services/import.js

@@ -26,14 +26,14 @@ export async function uploadFiles(parentNoteId, files, options) {
         }
 
         ({noteId} = await $.ajax({
-            url: baseApiUrl + 'notes/' + parentNoteId + '/import',
+            url: `${baseApiUrl}notes/${parentNoteId}/import`,
             headers: await server.getHeaders(),
             data: formData,
             dataType: 'json',
             type: 'POST',
             timeout: 60 * 60 * 1000,
             error: function(xhr) {
-                toastService.showError("Import failed: " + xhr.responseText);
+                toastService.showError(`Import failed: ${xhr.responseText}`);
             },
             contentType: false, // NEEDED, DON'T REMOVE THIS
             processData: false, // NEEDED, DON'T REMOVE THIS
@@ -59,7 +59,7 @@ ws.subscribeToMessages(async message => {
         toastService.closePersistent(message.taskId);
         toastService.showError(message.message);
     } else if (message.type === 'taskProgressCount') {
-        toastService.showPersistent(makeToast(message.taskId, "Import in progress: " + message.progressCount));
+        toastService.showPersistent(makeToast(message.taskId, `Import in progress: ${message.progressCount}`));
     } else if (message.type === 'taskSucceeded') {
         const toast = makeToast(message.taskId, "Import finished successfully.");
         toast.closeAfter = 5000;

src/public/app/services/library_loader.js

@@ -86,7 +86,7 @@ async function requireLibrary(library) {
 const loadedScriptPromises = {};
 
 async function requireScript(url) {
-    url = window.glob.assetPath + "/" + url;
+    url = `${window.glob.assetPath}/${url}`;
 
     if (!loadedScriptPromises[url]) {
         loadedScriptPromises[url] = $.ajax({
@@ -106,7 +106,7 @@ async function requireCss(url, prependAssetPath = true) {
 
     if (!cssLinks.some(l => l.endsWith(url))) {
         if (prependAssetPath) {
-            url = window.glob.assetPath + "/" + url;
+            url = `${window.glob.assetPath}/${url}`;
         }
 
         $('head').append($('<link rel="stylesheet" type="text/css" />').attr('href', url));

src/public/app/services/link.js

@@ -20,7 +20,7 @@ async function createNoteLink(notePath, options = {}) {
     if (!notePath.startsWith("root")) {
         // all note paths should start with "root/" (except for "root" itself)
         // used e.g. to find internal links
-        notePath = "root/" + notePath;
+        notePath = `root/${notePath}`;
     }
 
     let noteTitle = options.title;
@@ -41,12 +41,12 @@ async function createNoteLink(notePath, options = {}) {
         const note = await froca.getNote(noteId);
 
         $container
-            .append($("<span>").addClass("bx " + note.getIcon()))
+            .append($("<span>").addClass(`bx ${note.getIcon()}`))
             .append(" ");
     }
 
     const $noteLink = $("<a>", {
-        href: '#' + notePath,
+        href: `#${notePath}`,
         text: noteTitle
     }).attr('data-action', 'note')
         .attr('data-note-path', notePath);
@@ -70,7 +70,7 @@ async function createNoteLink(notePath, options = {}) {
             const parentNotePath = resolvedNotePathSegments.join("/").trim();
 
             if (parentNotePath) {
-                $container.append($("<small>").text(" (" + await treeService.getNotePathTitle(parentNotePath) + ")"));
+                $container.append($("<small>").text(` (${await treeService.getNotePathTitle(parentNotePath)})`));
             }
         }
     }

src/public/app/services/note_autocomplete.js

@@ -17,9 +17,9 @@ async function autocompleteSourceForCKEditor(queryText) {
                 return {
                     action: row.action,
                     noteTitle: row.noteTitle,
-                    id: '@' + row.notePathTitle,
+                    id: `@${row.notePathTitle}`,
                     name: row.notePathTitle,
-                    link: '#' + row.notePath,
+                    link: `#${row.notePath}`,
                     notePath: row.notePath,
                     highlightedNotePathTitle: row.highlightedNotePathTitle
                 }
@@ -33,9 +33,7 @@ async function autocompleteSourceForCKEditor(queryText) {
 async function autocompleteSource(term, cb, options = {}) {
     const activeNoteId = appContext.tabManager.getActiveContextNoteId();
 
-    let results = await server.get('autocomplete'
-            + '?query=' + encodeURIComponent(term)
-            + '&activeNoteId=' + activeNoteId);
+    let results = await server.get(`autocomplete?query=${encodeURIComponent(term)}&activeNoteId=${activeNoteId}`);
 
     if (term.trim().length >= 1 && options.allowCreatingNotes) {
         results = [

src/public/app/services/note_content_renderer.js

@@ -37,7 +37,7 @@ async function getRenderedContent(note, options = {}) {
         }
     }
     else if (type === 'code') {
-        const fullNote = await server.get('notes/' + note.noteId);
+        const fullNote = await server.get(`notes/${note.noteId}`);
 
         $renderedContent.append($("<pre>").text(trim(fullNote.content, options.trim)));
     }
@@ -64,13 +64,13 @@ async function getRenderedContent(note, options = {}) {
 
         if (type === 'pdf') {
             const $pdfPreview = $('<iframe class="pdf-preview" style="width: 100%; flex-grow: 100;"></iframe>');
-            $pdfPreview.attr("src", openService.getUrlForDownload("api/notes/" + note.noteId + "/open"));
+            $pdfPreview.attr("src", openService.getUrlForDownload(`api/notes/${note.noteId}/open`));
 
             $content.append($pdfPreview);
         }
         else if (type === 'audio') {
             const $audioPreview = $('<audio controls></audio>')
-                .attr("src", openService.getUrlForStreaming("api/notes/" + note.noteId + "/open-partial"))
+                .attr("src", openService.getUrlForStreaming(`api/notes/${note.noteId}/open-partial`))
                 .attr("type", note.mime)
                 .css("width", "100%");
 
@@ -78,7 +78,7 @@ async function getRenderedContent(note, options = {}) {
         }
         else if (type === 'video') {
             const $videoPreview = $('<video controls></video>')
-                .attr("src", openService.getUrlForDownload("api/notes/" + note.noteId + "/open-partial"))
+                .attr("src", openService.getUrlForDownload(`api/notes/${note.noteId}/open-partial`))
                 .attr("type", note.mime)
                 .css("width", "100%");
 

src/public/app/services/note_list_renderer.js

@@ -178,7 +178,7 @@ class NoteListRenderer {
             this.viewType = parentNote.type === 'search' ? 'list' : 'grid';
         }
 
-        this.$noteList.addClass(this.viewType + '-view');
+        this.$noteList.addClass(`${this.viewType}-view`);
 
         this.showNotePath = showNotePath;
     }
@@ -267,7 +267,7 @@ class NoteListRenderer {
         const {$renderedAttributes} = await attributeRenderer.renderNormalAttributes(note);
         const notePath = this.parentNote.type === 'search'
             ? note.noteId // for search note parent we want to display non-search path
-            : this.parentNote.noteId + '/' + note.noteId;
+            : `${this.parentNote.noteId}/${note.noteId}`;
 
         const $card = $('<div class="note-book-card">')
             .attr('data-note-id', note.noteId)
@@ -345,7 +345,7 @@ class NoteListRenderer {
             }
 
             $content.append($renderedContent);
-            $content.addClass("type-" + type);
+            $content.addClass(`type-${type}`);
         } catch (e) {
             console.log(`Caught error while rendering note ${note.noteId} of type ${note.type}: ${e.message}, stack: ${e.stack}`);
 

src/public/app/services/note_tooltip.js

@@ -50,7 +50,7 @@ async function mouseEnterHandler() {
         return;
     }
 
-    const html = '<div class="note-tooltip-content">' + content + '</div>';
+    const html = `<div class="note-tooltip-content">${content}</div>`;
 
     // we need to check if we're still hovering over the element
     // since the operation to get tooltip content was async, it is possible that
@@ -89,7 +89,7 @@ async function renderTooltip(note) {
         return;
     }
 
-    let content = '<h5 class="note-tooltip-title">' + (await treeService.getNoteTitleWithPathAsSuffix(someNotePath)).prop('outerHTML') + '</h5>';
+    let content = `<h5 class="note-tooltip-title">${(await treeService.getNoteTitleWithPathAsSuffix(someNotePath)).prop('outerHTML')}</h5>`;
 
     const {$renderedAttributes} = await attributeRenderer.renderNormalAttributes(note);
 
@@ -98,9 +98,7 @@ async function renderTooltip(note) {
         trim: true
     });
 
-    content = content
-        + '<div class="note-tooltip-attributes">' + $renderedAttributes[0].outerHTML + '</div>'
-        + $renderedContent[0].outerHTML;
+    content = `${content}<div class="note-tooltip-attributes">${$renderedAttributes[0].outerHTML}</div>${$renderedContent[0].outerHTML}`;
 
     return content;
 }

src/public/app/services/open.js

@@ -2,10 +2,10 @@ import utils from "./utils.js";
 import server from "./server.js";
 
 function getFileUrl(noteId) {
-    return getUrlForDownload("api/notes/" + noteId + "/download");
+    return getUrlForDownload(`api/notes/${noteId}/download`);
 }
 function getOpenFileUrl(noteId) {
-    return getUrlForDownload("api/notes/" + noteId + "/open");
+    return getUrlForDownload(`api/notes/${noteId}/open`);
 }
 
 function download(url) {
@@ -19,14 +19,14 @@ function download(url) {
 }
 
 function downloadFileNote(noteId) {
-    const url = getFileUrl(noteId) + '?' + Date.now(); // don't use cache
+    const url = `${getFileUrl(noteId)}?${Date.now()}`; // don't use cache
 
     download(url);
 }
 
 async function openNoteExternally(noteId, mime) {
     if (utils.isElectron()) {
-        const resp = await server.post("notes/" + noteId + "/save-to-tmp-dir");
+        const resp = await server.post(`notes/${noteId}/save-to-tmp-dir`);
 
         const electron = utils.dynamicRequire('electron');
         const res = await electron.shell.openPath(resp.tmpFilePath);
@@ -59,7 +59,7 @@ function downloadNoteRevision(noteId, noteRevisionId) {
 function getUrlForDownload(url) {
     if (utils.isElectron()) {
         // electron needs absolute URL so we extract current host, port, protocol
-        return getHost() + '/' + url;
+        return `${getHost()}/${url}`;
     }
     else {
         // web server can be deployed on subdomain so we need to use relative path
@@ -69,7 +69,7 @@ function getUrlForDownload(url) {
 
 function getHost() {
     const url = new URL(window.location.href);
-    return url.protocol + "//" + url.hostname + ":" + url.port;
+    return `${url.protocol}//${url.hostname}:${url.port}`;
 }
 
 export default {

src/public/app/services/protected_session.js

@@ -88,7 +88,7 @@ async function protectNote(noteId, protect, includingSubtree) {
 function makeToast(message, protectingLabel, text) {
     return {
         id: message.taskId,
-        title: protectingLabel + " status",
+        title: `${protectingLabel} status`,
         message: text,
         icon: message.data.protect ? "check-shield" : "shield"
     };
@@ -105,9 +105,9 @@ ws.subscribeToMessages(async message => {
         toastService.closePersistent(message.taskId);
         toastService.showError(message.message);
     } else if (message.type === 'taskProgressCount') {
-        toastService.showPersistent(makeToast(message, protectingLabel,protectingLabel + " in progress: " + message.progressCount));
+        toastService.showPersistent(makeToast(message, protectingLabel,`${protectingLabel} in progress: ${message.progressCount}`));
     } else if (message.type === 'taskSucceeded') {
-        const toast = makeToast(message, protectingLabel, protectingLabel + " finished successfully.");
+        const toast = makeToast(message, protectingLabel, `${protectingLabel} finished successfully.`);
         toast.closeAfter = 3000;
 
         toastService.showPersistent(toast);

src/public/app/services/render.js

@@ -10,7 +10,7 @@ async function render(note, $el) {
     $el.empty().toggle(renderNoteIds.length > 0);
 
     for (const renderNoteId of renderNoteIds) {
-        const bundle = await server.get('script/bundle/' + renderNoteId);
+        const bundle = await server.get(`script/bundle/${renderNoteId}`);
 
         const $scriptContainer = $('<div>');
         $el.append($scriptContainer);

src/public/app/services/script_context.js

@@ -20,7 +20,7 @@ async function ScriptContext(startNoteId, allNoteIds, originEntity = null, $cont
                 const note = candidates.find(c => c.title === moduleName);
 
                 if (!note) {
-                    throw new Error("Could not find module note " + moduleName);
+                    throw new Error(`Could not find module note ${moduleName}`);
                 }
 
                 return modules[note.noteId].exports;

src/public/app/services/search.js

@@ -2,7 +2,7 @@ import server from "./server.js";
 import froca from "./froca.js";
 
 async function searchForNoteIds(searchString) {
-    return await server.get('search/' + encodeURIComponent(searchString));
+    return await server.get(`search/${encodeURIComponent(searchString)}`);
 }
 
 async function searchForNotes(searchString) {

src/public/app/services/server.js

@@ -72,14 +72,14 @@ async function call(method, url, data, headers = {}) {
             reqRejects[requestId] = reject;
 
             if (REQUEST_LOGGING_ENABLED) {
-                console.log(utils.now(), "Request #" + requestId + " to " + method + " " + url);
+                console.log(utils.now(), `Request #${requestId} to ${method} ${url}`);
             }
 
             ipc.send('server-request', {
                 requestId: requestId,
                 headers: headers,
                 method: method,
-                url: "/" + baseApiUrl + url,
+                url: `/${baseApiUrl}${url}`,
                 data: data
             });
         });
@@ -117,7 +117,7 @@ async function reportError(method, url, statusCode, response) {
         toastService.showError(response.message);
         throw new ValidationError(response);
     } else {
-        const message = "Error when calling " + method + " " + url + ": " + statusCode + " - " + response;
+        const message = `Error when calling ${method} ${url}: ${statusCode} - ${response}`;
         toastService.showError(message);
         toastService.throwError(message);
     }
@@ -169,7 +169,7 @@ if (utils.isElectron()) {
 
     ipc.on('server-response', async (event, arg) => {
         if (REQUEST_LOGGING_ENABLED) {
-            console.log(utils.now(), "Response #" + arg.requestId + ": " + arg.statusCode);
+            console.log(utils.now(), `Response #${arg.requestId}: ${arg.statusCode}`);
         }
 
         if (arg.statusCode >= 200 && arg.statusCode < 300) {

src/public/app/services/shortcuts.js

@@ -15,7 +15,7 @@ function bindElShortcut($el, keyboardShortcut, handler, namespace = null) {
         let eventName = 'keydown';
 
         if (namespace) {
-            eventName += "." + namespace;
+            eventName += `.${namespace}`;
 
             // if there's a namespace then we replace the existing event handler with the new one
             $el.off(eventName);

src/public/app/services/sync.js

@@ -9,17 +9,17 @@ async function syncNow(ignoreNotConfigured = false) {
     }
     else {
         if (result.message.length > 200) {
-            result.message = result.message.substr(0, 200) + "...";
+            result.message = `${result.message.substr(0, 200)}...`;
         }
 
         if (!ignoreNotConfigured || result.errorCode !== 'NOT_CONFIGURED') {
-            toastService.showError("Sync failed: " + result.message);
+            toastService.showError(`Sync failed: ${result.message}`);
         }
     }
 }
 
 async function forceNoteSync(noteId) {
-    await server.post('sync/force-note-sync/' + noteId);
+    await server.post(`sync/force-note-sync/${noteId}`);
 
     toastService.showMessage("Note added to sync queue.");
 }

src/public/app/services/toast.js

@@ -16,7 +16,7 @@ function toast(options) {
     $toast.find('.toast-body').text(options.message);
 
     if (options.id) {
-        $toast.attr("id", "toast-" + options.id);
+        $toast.attr("id", `toast-${options.id}`);
     }
 
     $("#toast-container").append($toast);
@@ -34,7 +34,7 @@ function toast(options) {
 }
 
 function showPersistent(options) {
-    let $toast = $("#toast-" + options.id);
+    let $toast = $(`#toast-${options.id}`);
 
     if ($toast.length > 0) {
         $toast.find('.toast-body').html(options.message);
@@ -51,7 +51,7 @@ function showPersistent(options) {
 }
 
 function closePersistent(id) {
-    $("#toast-" + id).remove();
+    $(`#toast-${id}`).remove();
 }
 
 function showMessage(message, delay = 2000) {

src/public/app/services/tree.js

@@ -292,7 +292,7 @@ async function getNoteTitleWithPathAsSuffix(notePath) {
 
     if (path.length > 0) {
         $titleWithPath
-            .append($('<span class="note-path">').text(' (' + path.join(' / ') + ')'));
+            .append($('<span class="note-path">').text(` (${path.join(' / ')})`));
     }
 
     return $titleWithPath;

src/public/app/services/utils.js

@@ -1,6 +1,6 @@
 function reloadFrontendApp(reason) {
     if (reason) {
-        logInfo("Frontend app reload: " + reason);
+        logInfo(`Frontend app reload: ${reason}`);
     }
 
     window.location.reload(true);
@@ -11,20 +11,20 @@ function parseDate(str) {
         return new Date(Date.parse(str));
     }
     catch (e) {
-        throw new Error("Can't parse date from " + str + ": " + e.stack);
+        throw new Error(`Can't parse date from ${str}: ${e.stack}`);
     }
 }
 
 function padNum(num) {
-    return (num <= 9 ? "0" : "") + num;
+    return `${num <= 9 ? "0" : ""}${num}`;
 }
 
 function formatTime(date) {
-    return padNum(date.getHours()) + ":" + padNum(date.getMinutes());
+    return `${padNum(date.getHours())}:${padNum(date.getMinutes())}`;
 }
 
 function formatTimeWithSeconds(date) {
-    return padNum(date.getHours()) + ":" + padNum(date.getMinutes()) + ":" + padNum(date.getSeconds());
+    return `${padNum(date.getHours())}:${padNum(date.getMinutes())}:${padNum(date.getSeconds())}`;
 }
 
 // this is producing local time!
@@ -37,11 +37,11 @@ function formatDate(date) {
 
 // this is producing local time!
 function formatDateISO(date) {
-    return date.getFullYear() + "-" + padNum(date.getMonth() + 1) + "-" + padNum(date.getDate());
+    return `${date.getFullYear()}-${padNum(date.getMonth() + 1)}-${padNum(date.getDate())}`;
 }
 
 function formatDateTime(date) {
-    return formatDate(date) + " " + formatTime(date);
+    return `${formatDate(date)} ${formatTime(date)}`;
 }
 
 function localNowDateTime() {
@@ -101,14 +101,14 @@ async function stopWatch(what, func) {
 }
 
 function formatValueWithWhitespace(val) {
-    return /[^\w_-]/.test(val) ? '"' + val + '"' : val;
+    return /[^\w_-]/.test(val) ? `"${val}"` : val;
 }
 
 function formatLabel(label) {
-    let str = "#" + formatValueWithWhitespace(label.name);
+    let str = `#${formatValueWithWhitespace(label.name)}`;
 
     if (label.value !== "") {
-        str += "=" + formatValueWithWhitespace(label.value);
+        str += `=${formatValueWithWhitespace(label.value)}`;
     }
 
     return str;
@@ -154,22 +154,22 @@ function isDesktop() {
 
 function setCookie(name, value) {
     const date = new Date(Date.now() + 10 * 365 * 24 * 60 * 60 * 1000);
-    const expires = "; expires=" + date.toUTCString();
+    const expires = `; expires=${date.toUTCString()}`;
 
-    document.cookie = name + "=" + (value || "")  + expires + ";";
+    document.cookie = `${name}=${value || ""}${expires};`;
 }
 
 function setSessionCookie(name, value) {
-    document.cookie = name + "=" + (value || "") + "; SameSite=Strict";
+    document.cookie = `${name}=${value || ""}; SameSite=Strict`;
 }
 
 function getCookie(name) {
-    const valueMatch = document.cookie.match('(^|;) ?' + name + '=([^;]*)(;|$)');
+    const valueMatch = document.cookie.match(`(^|;) ?${name}=([^;]*)(;|$)`);
     return valueMatch ? valueMatch[2] : null;
 }
 
 function getNoteTypeClass(type) {
-    return "type-" + type;
+    return `type-${type}`;
 }
 
 function getMimeTypeClass(mime) {
@@ -184,7 +184,7 @@ function getMimeTypeClass(mime) {
         mime = mime.substr(0, semicolonIdx);
     }
 
-    return 'mime-' + mime.toLowerCase().replace(/[\W_]+/g,"-");
+    return `mime-${mime.toLowerCase().replace(/[\W_]+/g, "-")}`;
 }
 
 function closeActiveDialog() {

src/public/app/services/ws.js

@@ -195,8 +195,7 @@ async function consumeFrontendUpdateData() {
 
 function connectWebSocket() {
     const loc = window.location;
-    const webSocketUri = (loc.protocol === "https:" ? "wss:" : "ws:")
-                       + "//" + loc.host + loc.pathname;
+    const webSocketUri = `${loc.protocol === "https:" ? "wss:" : "ws:"}//${loc.host}${loc.pathname}`;
 
     // use wss for secure messaging
     const ws = new WebSocket(webSocketUri);

src/public/app/setup.js

@@ -8,7 +8,7 @@ function SetupModel() {
         setInterval(checkOutstandingSyncs, 1000);
     }
 
-    const serverAddress = location.protocol + '//' + location.host;
+    const serverAddress = `${location.protocol}//${location.host}`;
 
     $("#current-host").html(serverAddress);
 
@@ -74,7 +74,7 @@ function SetupModel() {
             hideAlert();
         }
         else {
-            showAlert('Sync setup failed: ' + resp.error);
+            showAlert(`Sync setup failed: ${resp.error}`);
         }
     };
 }

src/public/app/widgets/attribute_widgets/attribute_detail.js

@@ -628,9 +628,9 @@ export default class AttributeDetailWidget extends NoteContextAwareWidget {
         }
 
         if (this.attrType === 'label-definition') {
-            attrName = 'label:' + attrName;
+            attrName = `label:${attrName}`;
         } else if (this.attrType === 'relation-definition') {
-            attrName = 'relation:' + attrName;
+            attrName = `relation:${attrName}`;
         }
 
         this.attribute.name = attrName;
@@ -662,12 +662,12 @@ export default class AttributeDetailWidget extends NoteContextAwareWidget {
             props.push(this.$inputLabelType.val());
 
             if (this.$inputLabelType.val() === 'number' && this.$inputNumberPrecision.val() !== '') {
-                props.push('precision=' + this.$inputNumberPrecision.val());
+                props.push(`precision=${this.$inputNumberPrecision.val()}`);
             }
         } else if (this.attrType === 'relation-definition' && this.$inputInverseRelation.val().trim().length > 0) {
             const inverseRelationName = this.$inputInverseRelation.val();
 
-            props.push("inverse=" + utils.filterAttributeName(inverseRelationName));
+            props.push(`inverse=${utils.filterAttributeName(inverseRelationName)}`);
         }
 
         this.$rowNumberPrecision.toggle(
@@ -683,7 +683,7 @@ export default class AttributeDetailWidget extends NoteContextAwareWidget {
 
     createNoteLink(noteId) {
         return $("<a>", {
-            href: '#' + noteId,
+            href: `#${noteId}`,
             class: 'reference-link',
             'data-note-path': noteId
         });

src/public/app/widgets/attribute_widgets/attribute_editor.js

@@ -99,7 +99,7 @@ const mentionSetup = {
 
                 return names.map(name => {
                     return {
-                        id: '#' + name,
+                        id: `#${name}`,
                         name: name
                     }
                 });
@@ -114,7 +114,7 @@ const mentionSetup = {
 
                 return names.map(name => {
                     return {
-                        id: '~' + name,
+                        id: `~${name}`,
                         name: name
                     }
                 });

src/public/app/widgets/bookmark_switch.js

@@ -20,7 +20,7 @@ export default class BookmarkSwitchWidget extends SwitchWidget {
     }
 
     async toggle(state) {
-        const resp = await server.put(`notes/${this.noteId}/toggle-in-parent/lbBookmarks/` + !!state);
+        const resp = await server.put(`notes/${this.noteId}/toggle-in-parent/lbBookmarks/${!!state}`);
 
         if (!resp.success) {
             toastService.showError(resp.message);

src/public/app/widgets/buttons/calendar.js

@@ -78,7 +78,7 @@ export default class CalendarWidget extends RightDropdownButtonWidget {
 
     init(activeDate) {
         // attaching time fixes local timezone handling
-        this.activeDate = activeDate ? new Date(activeDate + "T12:00:00") : null;
+        this.activeDate = activeDate ? new Date(`${activeDate}T12:00:00`) : null;
         this.todaysDate = new Date();
         this.date = new Date((this.activeDate || this.todaysDate).getTime());
         this.date.setDate(1);
@@ -97,7 +97,7 @@ export default class CalendarWidget extends RightDropdownButtonWidget {
             if (day === 0) {
                 $newDay.css("marginLeft", (6 * 14.28) + '%');
             } else {
-                $newDay.css("marginLeft", ((day - 1) * 14.28) + '%');
+                $newDay.css("marginLeft", `${(day - 1) * 14.28}%`);
             }
         }
 
@@ -132,7 +132,7 @@ export default class CalendarWidget extends RightDropdownButtonWidget {
 
     async createMonth() {
         const month = utils.formatDateISO(this.date).substr(0, 7);
-        const dateNotesForMonth = await server.get('special-notes/notes-for-month/' + month);
+        const dateNotesForMonth = await server.get(`special-notes/notes-for-month/${month}`);
 
         this.$month.empty();
 
@@ -153,7 +153,7 @@ export default class CalendarWidget extends RightDropdownButtonWidget {
         this.date.setDate(1);
         this.date.setMonth(this.date.getMonth() - 1);
 
-        this.$label.html(this.monthsAsString(this.date.getMonth()) + ' ' + this.date.getFullYear());
+        this.$label.html(`${this.monthsAsString(this.date.getMonth())} ${this.date.getFullYear()}`);
     }
 
     monthsAsString(monthIndex) {

src/public/app/widgets/buttons/global_menu.js

@@ -281,7 +281,7 @@ export default class GlobalMenuWidget extends BasicWidget {
         const zoomFactor = utils.dynamicRequire('electron').webFrame.getZoomFactor();
         const zoomPercent = Math.round(zoomFactor * 100);
 
-        this.$zoomState.text(zoomPercent + "%");
+        this.$zoomState.text(`${zoomPercent}%`);
     }
 
     async updateVersionStatus() {

src/public/app/widgets/collapsible_widget.js

@@ -20,7 +20,7 @@ export default class CollapsibleWidget extends NoteContextAwareWidget {
     doRender() {
         this.$widget = $(WIDGET_TPL);
         this.contentSized();
-        this.$widget.find('[data-target]').attr('data-target', "#" + this.componentId);
+        this.$widget.find('[data-target]').attr('data-target', `#${this.componentId}`);
 
         this.$bodyWrapper = this.$widget.find('.body-wrapper');
         this.$bodyWrapper.attr('id', this.componentId); // for toggle to work we need id

src/public/app/widgets/dialogs/about.js

@@ -70,7 +70,7 @@ export default class AboutDialog extends BasicWidget {
         this.$syncVersion.text(appInfo.syncVersion);
         this.$buildDate.text(appInfo.buildDate);
         this.$buildRevision.text(appInfo.buildRevision);
-        this.$buildRevision.attr('href', 'https://github.com/zadam/trilium/commit/' + appInfo.buildRevision);
+        this.$buildRevision.attr('href', `https://github.com/zadam/trilium/commit/${appInfo.buildRevision}`);
         this.$dataDirectory.text(appInfo.dataDirectory);
     }
 

src/public/app/widgets/dialogs/branch_prefix.js

@@ -82,7 +82,7 @@ export default class BranchPrefixDialog extends BasicWidget {
 
         const noteTitle = await treeService.getNoteTitle(noteId);
 
-        this.$noteTitle.text(" - " + noteTitle);
+        this.$noteTitle.text(` - ${noteTitle}`);
     }
 
     async editBranchPrefixEvent() {

src/public/app/widgets/dialogs/bulk_actions.js

@@ -130,7 +130,7 @@ export default class BulkActionsDialog extends BasicWidget {
         for (const actionGroup of bulkActionService.ACTION_GROUPS) {
             const $actionGroupList = $("<td>");
             const $actionGroup = $("<tr>")
-                .append($("<td>").text(actionGroup.title + ": "))
+                .append($("<td>").text(`${actionGroup.title}: `))
                 .append($actionGroupList);
 
             for (const action of actionGroup.actions) {

src/public/app/widgets/dialogs/confirm.js

@@ -96,7 +96,7 @@ export default class ConfirmDialog extends BasicWidget {
                         .append(
                             $("<input>")
                                 .attr("type", "checkbox")
-                                .addClass("form-check-input " + DELETE_NOTE_BUTTON_CLASS)
+                                .addClass(`form-check-input ${DELETE_NOTE_BUTTON_CLASS}`)
                         )
                         .append("Also delete the note")
                 ));
@@ -111,7 +111,7 @@ export default class ConfirmDialog extends BasicWidget {
     doResolve(ret) {
         this.resolve({
             confirmed: ret,
-            isDeleteNoteChecked: this.$widget.find("." + DELETE_NOTE_BUTTON_CLASS + ":checked").length > 0
+            isDeleteNoteChecked: this.$widget.find(`.${DELETE_NOTE_BUTTON_CLASS}:checked`).length > 0
         });
 
         this.resolve = null;

src/public/app/widgets/dialogs/export.js

@@ -203,7 +203,7 @@ export default class ExportDialog extends BasicWidget {
             this.$singleType.prop("checked", true).trigger('change');
         }
         else {
-            throw new Error("Unrecognized type " + defaultType);
+            throw new Error(`Unrecognized type ${defaultType}`);
         }
 
         this.$widget.find(".opml-v2").prop("checked", true); // setting default
@@ -242,7 +242,7 @@ ws.subscribeToMessages(async message => {
         toastService.showError(message.message);
     }
     else if (message.type === 'taskProgressCount') {
-        toastService.showPersistent(makeToast(message.taskId, "Export in progress: " + message.progressCount));
+        toastService.showPersistent(makeToast(message.taskId, `Export in progress: ${message.progressCount}`));
     }
     else if (message.type === 'taskSucceeded') {
         const toast = makeToast(message.taskId, "Export finished successfully.");

src/public/app/widgets/dialogs/note_revisions.js

@@ -147,9 +147,9 @@ export default class NoteRevisionsDialog extends BasicWidget {
         for (const item of this.revisionItems) {
             this.$list.append(
                 $('<a class="dropdown-item" tabindex="0">')
-                    .text(item.dateLastEdited.substr(0, 16) + ` (${item.contentLength} bytes)`)
+                    .text(`${item.dateLastEdited.substr(0, 16)} (${item.contentLength} bytes)`)
                     .attr('data-note-revision-id', item.noteRevisionId)
-                    .attr('title', 'This revision was last edited on ' + item.dateLastEdited)
+                    .attr('title', `This revision was last edited on ${item.dateLastEdited}`)
             );
         }
 
@@ -241,7 +241,7 @@ export default class NoteRevisionsDialog extends BasicWidget {
             this.$content.html($("<img>")
                 // reason why we put this inline as base64 is that we do not want to let user to copy this
                 // as a URL to be used in a note. Instead if they copy and paste it into a note, it will be a uploaded as a new note
-                .attr("src", `data:${note.mime};base64,` + fullNoteRevision.content)
+                .attr("src", `data:${note.mime};base64,${fullNoteRevision.content}`)
                 .css("max-width", "100%")
                 .css("max-height", "100%"));
         }
@@ -253,7 +253,7 @@ export default class NoteRevisionsDialog extends BasicWidget {
                 ))
                 .append($("<tr>").append(
                     $("<th>").text("File size:"),
-                    $("<td>").text(revisionItem.contentLength + " bytes")
+                    $("<td>").text(`${revisionItem.contentLength} bytes`)
                 ));
 
             if (fullNoteRevision.content) {

src/public/app/widgets/dialogs/note_source.js

@@ -54,13 +54,15 @@ export default class NoteSourceDialog extends BasicWidget {
         let textNode;
 
         for (let i = 0; i < node.children.length; i++) {
-            textNode = document.createTextNode('\n' + indentBefore);
+            textNode = document.createTextNode(`
+${indentBefore}`);
             node.insertBefore(textNode, node.children[i]);
 
             this.formatNode(node.children[i], level);
 
             if (node.lastElementChild === node.children[i]) {
-                textNode = document.createTextNode('\n' + indentAfter);
+                textNode = document.createTextNode(`
+${indentAfter}`);
                 node.appendChild(textNode);
             }
         }

src/public/app/widgets/dialogs/note_type_chooser.js

@@ -110,7 +110,7 @@ export default class NoteTypeChooserDialog extends BasicWidget {
                         .attr("data-note-type", noteType.type)
                         .attr("data-template-note-id", noteType.templateNoteId)
                         .append($("<span>").addClass(noteType.uiIcon))
-                        .append(" " + noteType.title)
+                        .append(` ${noteType.title}`)
                 );
             }
         }

src/public/app/widgets/dialogs/recent_changes.js

@@ -57,7 +57,7 @@ export default class RecentChangesDialog extends BasicWidget {
             this.ancestorNoteId = hoistedNoteService.getHoistedNoteId();
         }
 
-        const recentChangesRows = await server.get('recent-changes/' + this.ancestorNoteId);
+        const recentChangesRows = await server.get(`recent-changes/${this.ancestorNoteId}`);
 
         // preload all notes into cache
         await froca.getNotes(recentChangesRows.map(r => r.noteId), true);

src/public/app/widgets/find_in_html.js

@@ -37,7 +37,7 @@ export default class FindInHtml {
                         separateWordSearch: false,
                         caseSensitive: matchCase,
                         done: async () => {
-                            this.$results = $content.find("." + FIND_RESULT_CSS_CLASSNAME);
+                            this.$results = $content.find(`.${FIND_RESULT_CSS_CLASSNAME}`);
                             this.currentIndex = 0;
                             await this.jumpTo();
 

src/public/app/widgets/floating_buttons/code_buttons.js

@@ -58,7 +58,7 @@ export default class CodeButtonsWidget extends NoteContextAwareWidget {
 
             await appContext.tabManager.getActiveContext().setNote(notePath);
 
-            toastService.showMessage("SQL Console note has been saved into " + await treeService.getNotePathTitle(notePath));
+            toastService.showMessage(`SQL Console note has been saved into ${await treeService.getNotePathTitle(notePath)}`);
         });
 
         keyboardActionService.updateDisplayedShortcuts(this.$widget);

src/public/app/widgets/floating_buttons/zpetne_odkazy.js

@@ -133,7 +133,7 @@ export default class BacklinksWidget extends NoteContextAwareWidget {
             }));
 
             if (backlink.relationName) {
-                $item.append($("<p>").text("relation: " + backlink.relationName));
+                $item.append($("<p>").text(`relation: ${backlink.relationName}`));
             }
             else {
                 $item.append(...backlink.excerpts);

src/public/app/widgets/mermaid.js

@@ -78,9 +78,9 @@ export default class MermaidWidget extends NoteContextAwareWidget {
 
             await wheelZoomLoaded;
 
-            this.$display.attr("id", 'mermaid-render-' + idCounter);
+            this.$display.attr("id", `mermaid-render-${idCounter}`);
 
-            WZoom.create('#mermaid-render-' + idCounter, {
+            WZoom.create(`#mermaid-render-${idCounter}`, {
                 type: 'html',
                 maxScale: 10,
                 speed: 20,
@@ -101,7 +101,7 @@ export default class MermaidWidget extends NoteContextAwareWidget {
             const noteComplement = await froca.getNoteComplement(this.noteId);
             const content = noteComplement.content || "";
 
-            mermaid.mermaidAPI.render('mermaid-graph-' + idCounter, content, res);
+            mermaid.mermaidAPI.render(`mermaid-graph-${idCounter}`, content, res);
         });
     }
 
@@ -118,12 +118,12 @@ export default class MermaidWidget extends NoteContextAwareWidget {
 
         const renderedSvg = await this.renderSvg();
 
-        this.download(this.note.title + ".svg", renderedSvg);
+        this.download(`${this.note.title}.svg`, renderedSvg);
     }
 
     download(filename, text) {
         const element = document.createElement('a');
-        element.setAttribute('href', 'data:image/svg+xml;charset=utf-8,' + encodeURIComponent(text));
+        element.setAttribute('href', `data:image/svg+xml;charset=utf-8,${encodeURIComponent(text)}`);
         element.setAttribute('download', filename);
 
         element.style.display = 'none';

src/public/app/widgets/mobile_widgets/mobile_detail_menu.js

@@ -40,7 +40,7 @@ class MobileDetailMenuWidget extends BasicWidget {
                         }
                     }
                     else {
-                        throw new Error("Unrecognized command " + command);
+                        throw new Error(`Unrecognized command ${command}`);
                     }
                 }
             });

src/public/app/widgets/note_detail.js

@@ -170,7 +170,7 @@ export default class NoteDetailWidget extends NoteContextAwareWidget {
 
     getTypeWidget() {
         if (!this.typeWidgets[this.type]) {
-            throw new Error("Could not find typeWidget for type: " + this.type);
+            throw new Error(`Could not find typeWidget for type: ${this.type}`);
         }
 
         return this.typeWidgets[this.type];
@@ -268,13 +268,13 @@ export default class NoteDetailWidget extends NoteContextAwareWidget {
 `,
             importCSS: false,
             loadCSS: [
-                assetPath + "/libraries/codemirror/codemirror.css",
-                assetPath + "/libraries/ckeditor/ckeditor-content.css",
-                assetPath + "/libraries/bootstrap/css/bootstrap.min.css",
-                assetPath + "/libraries/katex/katex.min.css",
-                assetPath + "/stylesheets/print.css",
-                assetPath + "/stylesheets/relation_map.css",
-                assetPath + "/stylesheets/ckeditor-theme.css"
+                `${assetPath}/libraries/codemirror/codemirror.css`,
+                `${assetPath}/libraries/ckeditor/ckeditor-content.css`,
+                `${assetPath}/libraries/bootstrap/css/bootstrap.min.css`,
+                `${assetPath}/libraries/katex/katex.min.css`,
+                `${assetPath}/stylesheets/print.css`,
+                `${assetPath}/stylesheets/relation_map.css`,
+                `${assetPath}/stylesheets/ckeditor-theme.css`
             ],
             debug: true
         });

src/public/app/widgets/note_icon.js

@@ -119,7 +119,7 @@ export default class NoteIconWidget extends NoteContextAwareWidget {
     }
 
     async refreshWithNote(note) {
-        this.$icon.removeClass().addClass(note.getIcon() + " note-icon");
+        this.$icon.removeClass().addClass(`${note.getIcon()} note-icon`);
     }
 
     async entitiesReloadedEvent({loadResults}) {
@@ -193,13 +193,13 @@ export default class NoteIconWidget extends NoteContextAwareWidget {
 
     getIconClass(icon) {
         if (icon.type_of_icon === 'LOGO') {
-            return "bx bxl-" + icon.name;
+            return `bx bxl-${icon.name}`;
         }
         else if (icon.type_of_icon === 'SOLID') {
-            return "bx bxs-" + icon.name;
+            return `bx bxs-${icon.name}`;
         }
         else {
-            return "bx bx-" + icon.name;
+            return `bx bx-${icon.name}`;
         }
     }
 }

src/public/app/widgets/note_map.js

@@ -163,7 +163,7 @@ export default class NoteMapWidget extends NoteContextAwareWidget {
 
     generateColorFromString(str) {
         if (this.themeStyle === "dark") {
-            str = "0" + str; // magic lightening modifier
+            str = `0${str}`; // magic lightening modifier
         }
 
         let hash = 0;
@@ -175,7 +175,7 @@ export default class NoteMapWidget extends NoteContextAwareWidget {
         for (let i = 0; i < 3; i++) {
             const value = (hash >> (i * 8)) & 0xFF;
 
-            color += ('00' + value.toString(16)).substr(-2);
+            color += (`00${value.toString(16)}`).substr(-2);
         }
         return color;
     }
@@ -209,14 +209,14 @@ export default class NoteMapWidget extends NoteContextAwareWidget {
         }
 
         ctx.fillStyle = this.css.textColor;
-        ctx.font = size + 'px ' + this.css.fontFamily;
+        ctx.font = `${size}px ${this.css.fontFamily}`;
         ctx.textAlign = 'center';
         ctx.textBaseline = 'middle';
 
         let title = node.name;
 
         if (title.length > 15) {
-            title = title.substr(0, 15) + "...";
+            title = `${title.substr(0, 15)}...`;
         }
 
         ctx.fillText(title, x, y + Math.round(size * 1.5));
@@ -227,7 +227,7 @@ export default class NoteMapWidget extends NoteContextAwareWidget {
             return;
         }
 
-        ctx.font = '3px ' + this.css.fontFamily;
+        ctx.font = `3px ${this.css.fontFamily}`;
         ctx.textAlign = 'center';
         ctx.textBaseline = 'middle';
         ctx.fillStyle = this.css.mutedTextColor;

src/public/app/widgets/note_tree.js

@@ -273,19 +273,19 @@ export default class NoteTreeWidget extends NoteContextAwareWidget {
     }
 
     get hideArchivedNotes() {
-        return options.is("hideArchivedNotes_" + this.treeName);
+        return options.is(`hideArchivedNotes_${this.treeName}`);
     }
 
     async setHideArchivedNotes(val) {
-        await options.save("hideArchivedNotes_" + this.treeName, val.toString());
+        await options.save(`hideArchivedNotes_${this.treeName}`, val.toString());
     }
 
     get hideIncludedImages() {
-        return options.is("hideIncludedImages_" + this.treeName);
+        return options.is(`hideIncludedImages_${this.treeName}`);
     }
 
     async setHideIncludedImages(val) {
-        await options.save("hideIncludedImages_" + this.treeName, val.toString());
+        await options.save(`hideIncludedImages_${this.treeName}`, val.toString());
     }
 
     get autoCollapseNoteTree() {
@@ -484,7 +484,7 @@ export default class NoteTreeWidget extends NoteContextAwareWidget {
                         } else if (data.hitMode === "over") {
                             branchService.moveToParentNote(selectedBranchIds, node.data.branchId);
                         } else {
-                            throw new Error("Unknown hitMode=" + data.hitMode);
+                            throw new Error(`Unknown hitMode=${data.hitMode}`);
                         }
                     }
                 }
@@ -676,7 +676,7 @@ export default class NoteTreeWidget extends NoteContextAwareWidget {
             return;
         }
 
-        const title = (branch.prefix ? (branch.prefix + " - ") : "") + note.title;
+        const title = `${branch.prefix ? (`${branch.prefix} - `) : ""}${note.title}`;
 
         node.data.isProtected = note.isProtected;
         node.data.noteType = note.type;
@@ -703,7 +703,7 @@ export default class NoteTreeWidget extends NoteContextAwareWidget {
             throw new Error(`Branch "${branch.branchId}" has no child note "${branch.noteId}"`);
         }
 
-        const title = (branch.prefix ? (branch.prefix + " - ") : "") + note.title;
+        const title = `${branch.prefix ? (`${branch.prefix} - `) : ""}${note.title}`;
 
         const isFolder = note.isFolder();
 

src/public/app/widgets/note_type.js

@@ -139,7 +139,7 @@ export default class NoteTypeWidget extends NoteContextAwareWidget {
             return;
         }
 
-        await server.put('notes/' + this.noteId + '/type', { type, mime });
+        await server.put(`notes/${this.noteId}/type`, { type, mime });
     }
 
     async confirmChangeIfContent() {

src/public/app/widgets/quick_search.js

@@ -98,12 +98,12 @@ export default class QuickSearchWidget extends BasicWidget {
         this.$dropdownMenu.empty();
         this.$dropdownMenu.append('<span class="dropdown-item disabled"><span class="bx bx-loader bx-spin"></span> Searching ...</span>');
 
-        const {searchResultNoteIds, error} = await server.get('quick-search/' + encodeURIComponent(searchString));
+        const {searchResultNoteIds, error} = await server.get(`quick-search/${encodeURIComponent(searchString)}`);
 
         if (error) {
             this.$searchString.tooltip({
                 trigger: 'manual',
-                title: "Search error: " + error,
+                title: `Search error: ${error}`,
                 placement: 'right'
             });
 

src/public/app/widgets/ribbon_widgets/edited_notes.js

@@ -48,7 +48,7 @@ export default class EditedNotesWidget extends CollapsibleWidget {
     }
 
     async refreshWithNote(note) {
-        let editedNotes = await server.get('edited-notes/' + note.getLabelValue("dateNote"));
+        let editedNotes = await server.get(`edited-notes/${note.getLabelValue("dateNote")}`);
 
         editedNotes = editedNotes.filter(n => n.noteId !== note.noteId);
 
@@ -69,7 +69,7 @@ export default class EditedNotesWidget extends CollapsibleWidget {
             const $item = $('<span class="edited-note-line">');
 
             if (editedNote.isDeleted) {
-                const title = editedNote.title + " (deleted)";
+                const title = `${editedNote.title} (deleted)`;
                 $item.append(
                     $("<i>")
                         .text(title)

src/public/app/widgets/ribbon_widgets/file_properties.js

@@ -104,7 +104,7 @@ export default class FilePropertiesWidget extends NoteContextAwareWidget {
             formData.append('upload', fileToUpload);
 
             const result = await $.ajax({
-                url: baseApiUrl + 'notes/' + this.noteId + '/file',
+                url: `${baseApiUrl}notes/${this.noteId}/file`,
                 headers: await server.getHeaders(),
                 data: formData,
                 type: 'PUT',
@@ -136,7 +136,7 @@ export default class FilePropertiesWidget extends NoteContextAwareWidget {
 
         const noteComplement = await this.noteContext.getNoteComplement();
 
-        this.$fileSize.text(noteComplement.contentLength + " bytes");
+        this.$fileSize.text(`${noteComplement.contentLength} bytes`);
 
         // open doesn't work for protected notes since it works through browser which isn't in protected session
         this.$openButton.toggle(!note.isProtected);

src/public/app/widgets/ribbon_widgets/image_properties.js

@@ -88,7 +88,7 @@ export default class ImagePropertiesWidget extends NoteContextAwareWidget {
             formData.append('upload', fileToUpload);
 
             const result = await $.ajax({
-                url: baseApiUrl + 'images/' + this.noteId,
+                url: `${baseApiUrl}images/${this.noteId}`,
                 headers: await server.getHeaders(),
                 data: formData,
                 type: 'PUT',
@@ -105,7 +105,7 @@ export default class ImagePropertiesWidget extends NoteContextAwareWidget {
                 this.refresh();
             }
             else {
-                toastService.showError("Upload of a new image revision failed: " + result.message);
+                toastService.showError(`Upload of a new image revision failed: ${result.message}`);
             }
         });
     }
@@ -119,7 +119,7 @@ export default class ImagePropertiesWidget extends NoteContextAwareWidget {
         const noteComplement = await this.noteContext.getNoteComplement();
 
         this.$fileName.text(attributeMap.originalFileName || "?");
-        this.$fileSize.text(noteComplement.contentLength + " bytes");
+        this.$fileSize.text(`${noteComplement.contentLength} bytes`);
         this.$fileType.text(note.mime);
     }
 }

src/public/app/widgets/ribbon_widgets/note_info_widget.js

@@ -110,7 +110,7 @@ export default class NoteInfoWidget extends NoteContextAwareWidget {
             const subTreeResp = await server.get(`stats/subtree-size/${this.noteId}`);
 
             if (subTreeResp.subTreeNoteCount > 1) {
-                this.$subTreeSize.text("(subtree size: " + this.formatSize(subTreeResp.subTreeSize) + ` in ${subTreeResp.subTreeNoteCount} notes)`);
+                this.$subTreeSize.text(`(subtree size: ${this.formatSize(subTreeResp.subTreeSize)} in ${subTreeResp.subTreeNoteCount} notes)`);
             }
             else {
                 this.$subTreeSize.text("");
@@ -133,7 +133,7 @@ export default class NoteInfoWidget extends NoteContextAwareWidget {
         this.$type.text(note.type);
 
         if (note.mime) {
-            this.$mime.text('(' + note.mime + ')');
+            this.$mime.text(`(${note.mime})`);
         }
         else {
             this.$mime.empty();

src/public/app/widgets/ribbon_widgets/promoted_attributes.js

@@ -139,7 +139,7 @@ export default class PromotedAttributesWidget extends NoteContextAwareWidget {
                 $input.prop("type", "text");
 
                 // no need to await for this, can be done asynchronously
-                server.get('attributes/values/' + encodeURIComponent(valueAttr.name)).then(attributeValues => {
+                server.get(`attributes/values/${encodeURIComponent(valueAttr.name)}`).then(attributeValues => {
                     if (attributeValues.length === 0) {
                         return;
                     }
@@ -207,7 +207,7 @@ export default class PromotedAttributesWidget extends NoteContextAwareWidget {
                     .append($openButton));
             }
             else {
-                ws.logError("Unknown labelType=" + definitionAttr.labelType);
+                ws.logError(`Unknown labelType=${definitionAttr.labelType}`);
             }
         }
         else if (valueAttr.type === 'relation') {
@@ -225,7 +225,7 @@ export default class PromotedAttributesWidget extends NoteContextAwareWidget {
             $input.setSelectedNotePath(valueAttr.value);
         }
         else {
-            ws.logError("Unknown attribute type=" + valueAttr.type);
+            ws.logError(`Unknown attribute type=${valueAttr.type}`);
             return;
         }
 
@@ -253,7 +253,7 @@ export default class PromotedAttributesWidget extends NoteContextAwareWidget {
                     const attributeId = $input.attr("data-attribute-id");
 
                     if (attributeId) {
-                        await server.remove("notes/" + this.noteId + "/attributes/" + attributeId, this.componentId);
+                        await server.remove(`notes/${this.noteId}/attributes/${attributeId}`, this.componentId);
                     }
 
                     // if it's the last one the create new empty form immediately

src/public/app/widgets/ribbon_widgets/search_definition.js

@@ -244,7 +244,7 @@ export default class SearchDefinitionWidget extends NoteContextAwareWidget {
 
             await appContext.tabManager.getActiveContext().setNote(notePath);
 
-            toastService.showMessage("Search note has been saved into " + await treeService.getNotePathTitle(notePath));
+            toastService.showMessage(`Search note has been saved into ${await treeService.getNotePathTitle(notePath)}`);
         });
     }
 

src/public/app/widgets/ribbon_widgets/similar_notes.js

@@ -64,7 +64,7 @@ export default class SimilarNotesWidget extends NoteContextAwareWidget {
         // remember which title was when we found the similar notes
         this.title = this.note.title;
 
-        const similarNotes = await server.get('similar-notes/' + this.noteId);
+        const similarNotes = await server.get(`similar-notes/${this.noteId}`);
 
         if (similarNotes.length === 0) {
             this.$similarNotesWrapper.empty().append("No similar notes found.");

src/public/app/widgets/search_options/search_string.js

@@ -61,7 +61,7 @@ export default class SearchString extends AbstractSearchOption {
 
             if (this.note.title.startsWith('Search: ')) {
                 await server.put(`notes/${this.note.noteId}/title`, {
-                    title: 'Search: ' + (searchString.length < 30 ? searchString : `${searchString.substr(0, 30)}…`)
+                    title: `Search: ${searchString.length < 30 ? searchString : `${searchString.substr(0, 30)}…`}`
                 });
             }
         }, 1000);
@@ -74,7 +74,7 @@ export default class SearchString extends AbstractSearchOption {
     showSearchErrorEvent({error}) {
         this.$searchString.tooltip({
             trigger: 'manual',
-            title: "Search error: " + error,
+            title: `Search error: ${error}`,
             placement: 'bottom'
         });
 

src/public/app/widgets/shared_info.js

@@ -35,11 +35,11 @@ export default class SharedInfoWidget extends NoteContextAwareWidget {
         const shareId = this.getShareId(note);
 
         if (syncServerHost) {
-            link = syncServerHost + "/share/" + shareId;
+            link = `${syncServerHost}/share/${shareId}`;
             this.$sharedText.text("This note is shared publicly on");
         }
         else {
-            link = location.protocol + '//' + location.host + location.pathname + "share/" + shareId;
+            link = `${location.protocol}//${location.host}${location.pathname}share/${shareId}`;
             this.$sharedText.text("This note is shared locally on");
         }
 

src/public/app/widgets/sync_status.js

@@ -105,7 +105,7 @@ export default class SyncStatusWidget extends BasicWidget {
 
         this.$widget.show();
         this.$widget.find('.sync-status-icon').hide();
-        this.$widget.find('.sync-status-' + className).show();
+        this.$widget.find(`.sync-status-${className}`).show();
     }
 
     processMessage(message) {
@@ -134,7 +134,7 @@ export default class SyncStatusWidget extends BasicWidget {
         if (['unknown', 'in-progress'].includes(this.syncState)) {
             this.showIcon(this.syncState);
         } else {
-            this.showIcon(this.syncState + '-' + (this.allChangesPushed ? 'no-changes' : 'with-changes'));
+            this.showIcon(`${this.syncState}-${this.allChangesPushed ? 'no-changes' : 'with-changes'}`);
         }
     }
 }

src/public/app/widgets/type_widgets/editable_code.js

@@ -44,7 +44,7 @@ export default class EditableCodeTypeWidget extends TypeWidget {
         delete CodeMirror.keyMap.default["Alt-Left"];
         delete CodeMirror.keyMap.default["Alt-Right"];
 
-        CodeMirror.modeURL = window.glob.assetPath + '/libraries/codemirror/mode/%N/%N.js';
+        CodeMirror.modeURL = `${window.glob.assetPath}/libraries/codemirror/mode/%N/%N.js`;
 
         this.codeEditor = CodeMirror(this.$editor[0], {
             value: "",

src/public/app/widgets/type_widgets/editable_text.js

@@ -249,9 +249,9 @@ export default class EditableTextTypeWidget extends AbstractTextTypeWidget {
 
         if (linkTitle) {
             if (this.hasSelection()) {
-                this.watchdog.editor.execute('link', '#' + notePath);
+                this.watchdog.editor.execute('link', `#${notePath}`);
             } else {
-                await this.addLinkToEditor('#' + notePath, linkTitle);
+                await this.addLinkToEditor(`#${notePath}`, linkTitle);
             }
         }
         else {

src/public/app/widgets/type_widgets/empty.js

@@ -76,9 +76,9 @@ export default class EmptyTypeWidget extends TypeWidget {
         for (const workspaceNote of workspaceNotes) {
             this.$workspaceNotes.append(
                 $('<div class="workspace-note">')
-                    .append($("<div>").addClass(workspaceNote.getIcon() + " workspace-icon"))
+                    .append($("<div>").addClass(`${workspaceNote.getIcon()} workspace-icon`))
                     .append($("<div>").text(workspaceNote.title))
-                    .attr("title", "Enter workspace " + workspaceNote.title)
+                    .attr("title", `Enter workspace ${workspaceNote.title}`)
                     .on('click', () => this.triggerCommand('hoistNote', {noteId: workspaceNote.noteId}))
             );
         }

src/public/app/widgets/type_widgets/file.js

@@ -65,19 +65,19 @@ export default class FileTypeWidget extends TypeWidget {
             this.$previewContent.text(noteComplement.content);
         }
         else if (note.mime === 'application/pdf') {
-            this.$pdfPreview.show().attr("src", openService.getUrlForDownload("api/notes/" + this.noteId + "/open"));
+            this.$pdfPreview.show().attr("src", openService.getUrlForDownload(`api/notes/${this.noteId}/open`));
         }
         else if (note.mime.startsWith('video/')) {
             this.$videoPreview
                 .show()
-                .attr("src", openService.getUrlForDownload("api/notes/" + this.noteId + "/open-partial"))
+                .attr("src", openService.getUrlForDownload(`api/notes/${this.noteId}/open-partial`))
                 .attr("type", this.note.mime)
                 .css("width", this.$widget.width());
         }
         else if (note.mime.startsWith('audio/')) {
             this.$audioPreview
                 .show()
-                .attr("src", openService.getUrlForDownload("api/notes/" + this.noteId + "/open-partial"))
+                .attr("src", openService.getUrlForDownload(`api/notes/${this.noteId}/open-partial`))
                 .attr("type", this.note.mime)
                 .css("width", this.$widget.width());
         }

src/public/app/widgets/type_widgets/image.js

@@ -45,10 +45,10 @@ class ImageTypeWidget extends TypeWidget {
         this.$widget = $(TPL);
         this.$imageWrapper = this.$widget.find('.note-detail-image-wrapper');
         this.$imageView = this.$widget.find('.note-detail-image-view')
-            .attr("id", "image-view-" + utils.randomString(10));
+            .attr("id", `image-view-${utils.randomString(10)}`);
 
         libraryLoader.requireLibrary(libraryLoader.WHEEL_ZOOM).then(() => {
-            WZoom.create('#' + this.$imageView.attr("id"), {
+            WZoom.create(`#${this.$imageView.attr("id")}`, {
                 maxScale: 10,
                 speed: 20,
                 zoomOnClick: false

src/public/app/widgets/type_widgets/options/advanced/database_integrity_check.js

@@ -24,7 +24,7 @@ export default class DatabaseIntegrityCheckOptions extends OptionsWidget {
                 toastService.showMessage("Integrity check succeeded - no problems found.");
             }
             else {
-                toastService.showMessage("Integrity check failed: " + JSON.stringify(results, null, 2), 15000);
+                toastService.showMessage(`Integrity check failed: ${JSON.stringify(results, null, 2)}`, 15000);
             }
         });
     }

src/public/app/widgets/type_widgets/options/appearance/fonts.js

@@ -167,8 +167,8 @@ export default class FontsOptions extends OptionsWidget {
         ];
 
         for (const optionName of optionsToSave) {
-            this['$' + optionName].on('change', () =>
-                this.updateOption(optionName, this['$' + optionName].val()));
+            this[`$${optionName}`].on('change', () =>
+                this.updateOption(optionName, this[`$${optionName}`].val()));
         }
     }
 

src/public/app/widgets/type_widgets/options/appearance/theme.js

@@ -28,7 +28,7 @@ export default class ThemeOptions extends OptionsWidget {
         this.$themeSelect.on('change', async () => {
             const newTheme = this.$themeSelect.val();
 
-            await server.put('options/theme/' + newTheme);
+            await server.put(`options/theme/${newTheme}`);
 
             utils.reloadFrontendApp("theme change");
         });

src/public/app/widgets/type_widgets/options/backup.js

@@ -48,7 +48,7 @@ export default class BackupOptions extends OptionsWidget {
         this.$backupDatabaseButton.on('click', async () => {
             const {backupFile} = await server.post('database/backup-database');
 
-            toastService.showMessage("Database has been backed up to " + backupFile, 10000);
+            toastService.showMessage(`Database has been backed up to ${backupFile}`, 10000);
         });
 
         this.$dailyBackupEnabled = this.$widget.find(".daily-backup-enabled");

src/public/app/widgets/type_widgets/options/shortcuts.js

@@ -106,7 +106,7 @@ export default class KeyboardShortcutsOptions extends OptionsWidget {
                               .map(shortcut => shortcut.replace("+Comma", "+,"))
                               .filter(shortcut => !!shortcut);
 
-            const optionName = 'keyboardShortcuts' + actionName.substr(0, 1).toUpperCase() + actionName.substr(1);
+            const optionName = `keyboardShortcuts${actionName.substr(0, 1).toUpperCase()}${actionName.substr(1)}`;
 
             this.updateOption(optionName, JSON.stringify(shortcuts));
         });

src/public/app/widgets/type_widgets/options/sync.js

@@ -59,7 +59,7 @@ export default class SyncOptions extends OptionsWidget {
                 toastService.showMessage(result.message);
             }
             else {
-                toastService.showError("Sync server handshake failed, error: " + result.message);
+                toastService.showError(`Sync server handshake failed, error: ${result.message}`);
             }
         });
     }

src/public/app/widgets/type_widgets/relation_map.js

@@ -209,7 +209,7 @@ export default class RelationMapTypeWidget extends TypeWidget {
     }
 
     noteIdToId(noteId) {
-        return "rel-map-note-" + noteId;
+        return `rel-map-note-${noteId}`;
     }
 
     idToNoteId(id) {
@@ -484,8 +484,8 @@ export default class RelationMapTypeWidget extends TypeWidget {
             .prop("id", this.noteIdToId(noteId))
             .append($("<span>").addClass("title").append($link))
             .append($("<div>").addClass("endpoint").attr("title", "Start dragging relations from here and drop them on another note."))
-            .css("left", x + "px")
-            .css("top", y + "px");
+            .css("left", `${x}px`)
+            .css("top", `${y}px`);
 
         this.jsPlumbInstance.getContainer().appendChild($noteBox[0]);
 
@@ -537,7 +537,7 @@ export default class RelationMapTypeWidget extends TypeWidget {
         const matches = transform.match(matrixRegex);
 
         if (!matches) {
-            throw new Error("Cannot match transform: " + transform);
+            throw new Error(`Cannot match transform: ${transform}`);
         }
 
         return matches[1];

src/routes/api/autocomplete.js

@@ -38,7 +38,7 @@ function getRecentNotes(activeNoteId) {
     const hoistedNoteId = cls.getHoistedNoteId();
     if (hoistedNoteId !== 'root') {
         extraCondition = `AND recent_notes.notePath LIKE ?`;
-        params.push('%' + hoistedNoteId + '%');
+        params.push(`%${hoistedNoteId}%`);
     }
 
     const recentNotes = becca.getRecentNotesFromQuery(`

src/routes/api/clipper.js

@@ -68,7 +68,7 @@ function addClipping(req) {
 
     const existingContent = clippingNote.getContent();
 
-    clippingNote.setContent(existingContent + (existingContent.trim() ? "<br/>" : "") + rewrittenContent);
+    clippingNote.setContent(`${existingContent}${existingContent.trim() ? "<br/>" : ""}${rewrittenContent}`);
 
     return {
         noteId: clippingNote.noteId
@@ -79,7 +79,7 @@ function createNote(req) {
     let {title, content, pageUrl, images, clipType} = req.body;
 
     if (!title || !title.trim()) {
-        title = "Clipped note from " + pageUrl;
+        title = `Clipped note from ${pageUrl}`;
     }
 
     const clipperInbox = getClipperInboxNote();
@@ -123,7 +123,7 @@ function processContent(images, note, content) {
                     ? dataUrl.substr(0, Math.min(100, dataUrl.length))
                     : "null";
 
-                log.info("Image could not be recognized as data URL: " + excerpt);
+                log.info(`Image could not be recognized as data URL: ${excerpt}`);
                 continue;
             }
 

src/routes/api/database.js

@@ -25,7 +25,7 @@ function vacuumDatabase() {
 function checkIntegrity() {
     const results = sql.getRows("PRAGMA integrity_check");
 
-    log.info("Integrity check result: " + JSON.stringify(results));
+    log.info(`Integrity check result: ${JSON.stringify(results)}`);
 
     return {
         results

src/routes/api/image.js

@@ -18,7 +18,7 @@ function returnImage(req, res) {
     }
     else if (image.isDeleted || image.data === null) {
         res.set('Content-Type', 'image/png');
-        return res.send(fs.readFileSync(RESOURCE_DIR + '/db/image-deleted.png'));
+        return res.send(fs.readFileSync(`${RESOURCE_DIR}/db/image-deleted.png`));
     }
 
     /**
@@ -81,7 +81,7 @@ function updateImage(req) {
     if (!["image/png", "image/jpeg", "image/gif", "image/webp", "image/svg+xml"].includes(file.mimetype)) {
         return {
             uploaded: false,
-            message: "Unknown image type: " + file.mimetype
+            message: `Unknown image type: ${file.mimetype}`
         };
     }
 

src/routes/api/import.js

@@ -63,7 +63,7 @@ async function importToBranch(req) {
         }
     }
     catch (e) {
-        const message = "Import failed with following error: '" + e.message + "'. More details might be in the logs.";
+        const message = `Import failed with following error: '${e.message}'. More details might be in the logs.`;
         taskContext.reportError(message);
 
         log.error(message + e.stack);