run eslint --fix .

chill-out/background.js

@@ -69,6 +69,6 @@ browser.alarms.onAlarm.addListener((alarm) => {
 /*
 On page action click, navigate the corresponding tab to the cat gifs.
 */
-browser.pageAction.onClicked.addListener(function () {
+browser.pageAction.onClicked.addListener(() => {
   browser.tabs.update({url: CATGIFS});
 });

context-menu-copy-link-with-types/background.js

@@ -3,7 +3,7 @@ browser.contextMenus.create({
     title: "Copy link to clipboard",
     contexts: ["link"],
 });
-browser.contextMenus.onClicked.addListener(function(info, tab) {
+browser.contextMenus.onClicked.addListener((info, tab) => {
     if (info.menuItemId === "copy-link-to-clipboard") {
         // Examples: text and HTML to be copied.
         const text = "This is text: " + info.linkUrl;
@@ -22,7 +22,7 @@ browser.contextMenus.onClicked.addListener(function(info, tab) {
 
         browser.tabs.executeScript({
             code: "typeof copyToClipboard === 'function';",
-        }).then(function(results) {
+        }).then((results) => {
             // The content script's last expression will be true if the function
             // has been defined. If this is not the case, then we need to run
             // clipboard-helper.js to define function copyToClipboard.
@@ -31,11 +31,11 @@ browser.contextMenus.onClicked.addListener(function(info, tab) {
                     file: "clipboard-helper.js",
                 });
             }
-        }).then(function() {
+        }).then(() => {
             return browser.tabs.executeScript(tab.id, {
                 code,
             });
-        }).catch(function(error) {
+        }).catch((error) => {
             // This could happen if the extension is not allowed to run code in
             // the page, for example if the tab is a privileged page.
             console.error("Failed to copy text: " + error);

context-menu-demo/background.js

@@ -127,7 +127,7 @@ function updateCheckUncheck() {
 The click event listener, where we perform the appropriate action given the
 ID of the menu item that was clicked.
 */
-browser.contextMenus.onClicked.addListener(function(info, tab) {
+browser.contextMenus.onClicked.addListener((info, tab) => {
   switch (info.menuItemId) {
     case "log-selection":
       console.log(info.selectionText);

page-to-extension-messaging/content-script.js

@@ -2,7 +2,7 @@
 Listen for messages from the page.
 If the message was from the page script, show an alert.
 */
-window.addEventListener("message", function(event) {
+window.addEventListener("message", (event) => {
   if (event.source == window &&
       event.data &&
       event.data.direction == "from-page-script") {

quicknote/popup/quicknote.js

@@ -88,7 +88,7 @@ function displayNote(title, body) {
 
   /* set up listener for the delete functionality */
 
-  deleteBtn.addEventListener('click',function(e){
+  deleteBtn.addEventListener('click',(e) => {
     evtTgt = e.target;
     evtTgt.parentNode.parentNode.parentNode.removeChild(evtTgt.parentNode.parentNode);
     browser.storage.local.remove(title);
@@ -125,24 +125,24 @@ function displayNote(title, body) {
 
   /* set up listeners for the update functionality */
 
-  noteH.addEventListener('click',function(){
+  noteH.addEventListener('click',() => {
     noteDisplay.style.display = 'none';
     noteEdit.style.display = 'block';
   })
 
-  notePara.addEventListener('click',function(){
+  notePara.addEventListener('click',() => {
     noteDisplay.style.display = 'none';
     noteEdit.style.display = 'block';
   }) 
 
-  cancelBtn.addEventListener('click',function(){
+  cancelBtn.addEventListener('click',() => {
     noteDisplay.style.display = 'block';
     noteEdit.style.display = 'none';
     noteTitleEdit.value = title;
     noteBodyEdit.value = body;
   })
 
-  updateBtn.addEventListener('click',function(){
+  updateBtn.addEventListener('click',() => {
     if(noteTitleEdit.value !== title || noteBodyEdit.value !== body) {
       updateNote(title,noteTitleEdit.value,noteBodyEdit.value);
       note.parentNode.removeChild(note);

tabs-tabs-tabs/tabs.js

@@ -47,7 +47,7 @@ function getCurrentWindowTabs() {
   return browser.tabs.query({currentWindow: true});
 }
 
-document.addEventListener("click", function(e) {
+document.addEventListener("click", (e) => {
   function callOnActiveTab(callback) {
     getCurrentWindowTabs().then((tabs) => {
       for (var tab of tabs) {
@@ -173,7 +173,7 @@ document.addEventListener("click", function(e) {
 
     chrome.tabs.query({
       currentWindow: true
-    }, function(tabs) {
+    }, (tabs) => {
       for (var tab of tabs) {
         if (tab.id === tabId) {
           chrome.tabs.update(tabId, {
@@ -188,7 +188,7 @@ document.addEventListener("click", function(e) {
 });
 
 //onRemoved listener. fired when tab is removed
-browser.tabs.onRemoved.addListener(function(tabId, removeInfo){
+browser.tabs.onRemoved.addListener((tabId, removeInfo) => {
   console.log(`The tab with id: ${tabId}, is closing`);
 
   if(removeInfo.isWindowClosing) {
@@ -199,7 +199,7 @@ browser.tabs.onRemoved.addListener(function(tabId, removeInfo){
 });
 
 //onMoved listener. fired when tab is moved into the same window
-browser.tabs.onMoved.addListener(function(tabId, moveInfo){
+browser.tabs.onMoved.addListener((tabId, moveInfo) => {
   var startIndex = moveInfo.fromIndex;
   var endIndex = moveInfo.toIndex;
   console.log(`Tab with id: ${tabId} moved from index: ${startIndex} to index: ${endIndex}`);

user-agent-rewriter/popup/choose_ua.js

@@ -4,7 +4,7 @@ If the user clicks on an element which has the class "ua-choice":
 * fetch the element's textContent: for example, "IE 11"
 * pass it into the background page's setUaString() function
 */
-document.addEventListener("click", function(e) {
+document.addEventListener("click", (e) => {
   if (!e.target.classList.contains("ua-choice")) {
     return;
   }