diff --git a/qt/ts/src/deckbrowser.ts b/qt/ts/src/deckbrowser.ts
index 40be7459e..34ac83b04 100644
--- a/qt/ts/src/deckbrowser.ts
+++ b/qt/ts/src/deckbrowser.ts
@@ -8,7 +8,7 @@ function init() {
         scroll: false,
 
         // can't use "helper: 'clone'" because of a bug in jQuery 1.5
-        helper: function(event) {
+        helper: function (event) {
             return $(this).clone(false);
         },
         delay: 200,
diff --git a/qt/ts/src/editor.ts b/qt/ts/src/editor.ts
index 6a59ff978..addb2f7a6 100644
--- a/qt/ts/src/editor.ts
+++ b/qt/ts/src/editor.ts
@@ -13,9 +13,9 @@ declare interface String {
 }
 
 /* kept for compatibility with add-ons */
-String.prototype.format = function() {
+String.prototype.format = function () {
     const args = arguments;
-    return this.replace(/\{\d+\}/g, function(m) {
+    return this.replace(/\{\d+\}/g, function (m) {
         return args[m.match(/\d+/)];
     });
 };
@@ -41,7 +41,7 @@ function saveNow(keepFocus) {
 
 function triggerKeyTimer() {
     clearChangeTimer();
-    changeTimer = setTimeout(function() {
+    changeTimer = setTimeout(function () {
         updateButtonState();
         saveField("key");
     }, 600);
@@ -391,7 +391,7 @@ function hideDupes() {
 }
 
 /// If the field has only an empty br, remove it first.
-let insertHtmlRemovingInitialBR = function(html: string) {
+let insertHtmlRemovingInitialBR = function (html: string) {
     if (html !== "") {
         // remove <br> in empty field
         if (currentField && currentField.innerHTML === "<br>") {
@@ -401,12 +401,12 @@ let insertHtmlRemovingInitialBR = function(html: string) {
     }
 };
 
-let pasteHTML = function(html, internal, extendedMode) {
+let pasteHTML = function (html, internal, extendedMode) {
     html = filterHTML(html, internal, extendedMode);
     insertHtmlRemovingInitialBR(html);
 };
 
-let filterHTML = function(html, internal, extendedMode) {
+let filterHTML = function (html, internal, extendedMode) {
     // wrap it in <top> as we aren't allowed to change top level elements
     const top = $.parseHTML("<ankitop>" + html + "</ankitop>")[0] as Element;
     if (internal) {
@@ -476,11 +476,11 @@ const allowedStyling = {
     "text-decoration-line": true,
 };
 
-let isNightMode = function(): boolean {
+let isNightMode = function (): boolean {
     return document.body.classList.contains("nightMode");
 };
 
-let filterExternalSpan = function(node) {
+let filterExternalSpan = function (node) {
     // filter out attributes
     let toRemove = [];
     for (const attr of node.attributes) {
@@ -520,7 +520,7 @@ allowedTagsExtended["SPAN"] = filterExternalSpan;
 Object.assign(allowedTagsExtended, allowedTagsBasic);
 
 // filtering from another field
-let filterInternalNode = function(node) {
+let filterInternalNode = function (node) {
     if (node.style) {
         node.style.removeProperty("background-color");
         node.style.removeProperty("font-size");
@@ -533,7 +533,7 @@ let filterInternalNode = function(node) {
 };
 
 // filtering from external sources
-let filterNode = function(node, extendedMode) {
+let filterNode = function (node, extendedMode) {
     // text node?
     if (node.nodeType === 3) {
         return;
@@ -586,7 +586,7 @@ let filterNode = function(node, extendedMode) {
     }
 };
 
-let adjustFieldsTopMargin = function() {
+let adjustFieldsTopMargin = function () {
     const topHeight = $("#topbuts").height();
     const margin = topHeight + 8;
     document.getElementById("fields").style.marginTop = margin + "px";
@@ -594,16 +594,16 @@ let adjustFieldsTopMargin = function() {
 
 let mouseDown = 0;
 
-$(function() {
-    document.body.onmousedown = function() {
+$(function () {
+    document.body.onmousedown = function () {
         mouseDown++;
     };
 
-    document.body.onmouseup = function() {
+    document.body.onmouseup = function () {
         mouseDown--;
     };
 
-    document.onclick = function(evt: MouseEvent) {
+    document.onclick = function (evt: MouseEvent) {
         const src = evt.target as Element;
         if (src.tagName === "IMG") {
             // image clicked; find contenteditable parent
@@ -618,11 +618,11 @@ $(function() {
     };
 
     // prevent editor buttons from taking focus
-    $("button.linkb").on("mousedown", function(e) {
+    $("button.linkb").on("mousedown", function (e) {
         e.preventDefault();
     });
 
-    window.onresize = function() {
+    window.onresize = function () {
         adjustFieldsTopMargin();
     };
 
diff --git a/qt/ts/src/overview.ts b/qt/ts/src/overview.ts
index 2080381e0..a5b05139c 100644
--- a/qt/ts/src/overview.ts
+++ b/qt/ts/src/overview.ts
@@ -1,6 +1,6 @@
 /* Copyright: Ankitects Pty Ltd and contributors
  * License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html */
 
-$(function() {
+$(function () {
     $("#study").focus();
 });
diff --git a/qt/ts/src/reviewer-bottom.ts b/qt/ts/src/reviewer-bottom.ts
index bc39285c3..8bb5e014f 100644
--- a/qt/ts/src/reviewer-bottom.ts
+++ b/qt/ts/src/reviewer-bottom.ts
@@ -4,16 +4,16 @@
 var time: number; // set in python code
 
 let maxTime = 0;
-$(function() {
+$(function () {
     $("#ansbut").focus();
     updateTime();
-    setInterval(function() {
+    setInterval(function () {
         time += 1;
         updateTime();
     }, 1000);
 });
 
-let updateTime = function() {
+let updateTime = function () {
     let timeNode = $("#time");
     if (!maxTime) {
         timeNode.text("");
diff --git a/qt/ts/src/reviewer.ts b/qt/ts/src/reviewer.ts
index 257c6e853..46672e422 100644
--- a/qt/ts/src/reviewer.ts
+++ b/qt/ts/src/reviewer.ts
@@ -21,7 +21,7 @@ function _updateQA(html, fadeTime, onupdate, onshown) {
     // if a request to update q/a comes in before the previous content
     // has been loaded, wait a while and try again
     if (_updatingQA) {
-        setTimeout(function() {
+        setTimeout(function () {
             _updateQA(html, fadeTime, onupdate, onshown);
         }, 50);
         return;
@@ -34,7 +34,7 @@ function _updateQA(html, fadeTime, onupdate, onshown) {
 
     // fade out current text
     var qa = $("#qa");
-    qa.fadeTo(fadeTime, 0, function() {
+    qa.fadeTo(fadeTime, 0, function () {
         // update text
         try {
             qa.html(html);
@@ -55,8 +55,8 @@ function _updateQA(html, fadeTime, onupdate, onshown) {
         MathJax.Hub.Queue(["Typeset", MathJax.Hub]);
 
         // and reveal when processing is done
-        MathJax.Hub.Queue(function() {
-            qa.fadeTo(fadeTime, 1, function() {
+        MathJax.Hub.Queue(function () {
+            qa.fadeTo(fadeTime, 1, function () {
                 _runHook(onShownHook);
                 _updatingQA = false;
             });
@@ -68,13 +68,13 @@ function _showQuestion(q, bodyclass) {
     _updateQA(
         q,
         qFade,
-        function() {
+        function () {
             // return to top of window
             window.scrollTo(0, 0);
 
             document.body.className = bodyclass;
         },
-        function() {
+        function () {
             // focus typing area if visible
             typeans = document.getElementById("typeans");
             if (typeans) {
@@ -88,7 +88,7 @@ function _showAnswer(a, bodyclass) {
     _updateQA(
         a,
         aFade,
-        function() {
+        function () {
             if (bodyclass) {
                 //  when previewing
                 document.body.className = bodyclass;
@@ -100,7 +100,7 @@ function _showAnswer(a, bodyclass) {
                 e[0].scrollIntoView();
             }
         },
-        function() {}
+        function () {}
     );
 }
 
diff --git a/qt/ts/src/webview.ts b/qt/ts/src/webview.ts
index 6c812bef8..c25c29427 100644
--- a/qt/ts/src/webview.ts
+++ b/qt/ts/src/webview.ts
@@ -2,7 +2,7 @@
  * License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html */
 
 // prevent backspace key from going back a page
-document.addEventListener("keydown", function(evt: KeyboardEvent) {
+document.addEventListener("keydown", function (evt: KeyboardEvent) {
     if (evt.keyCode !== 8) {
         return;
     }