refactor: replace var with const / let (#14866)

spec/fixtures/module/answer.js

@@ -1,4 +1,4 @@
-var ipcRenderer = require('electron').ipcRenderer
+const { ipcRenderer } = require('electron')
 window.answer = function (answer) {
   ipcRenderer.send('answer', answer)
 }

spec/fixtures/module/asar.js

@@ -1,4 +1,4 @@
-var fs = require('fs')
+const fs = require('fs')
 process.on('message', function (file) {
   process.send(fs.readFileSync(file).toString())
 })

spec/fixtures/module/check-arguments.js

@@ -1,4 +1,4 @@
-var ipcRenderer = require('electron').ipcRenderer
+const { ipcRenderer } = require('electron')
 window.onload = function () {
   ipcRenderer.send('answer', process.argv)
 }

spec/fixtures/module/create_socket.js

@@ -1,4 +1,4 @@
-var net = require('net')
-var server = net.createServer(function () {})
+const net = require('net')
+const server = net.createServer(function () {})
 server.listen(process.argv[2])
 process.exit(0)

spec/fixtures/module/fork_ping.js

@@ -4,7 +4,7 @@ process.on('uncaughtException', function (error) {
   process.send(error.stack)
 })
 
-var child = require('child_process').fork(path.join(__dirname, '/ping.js'))
+const child = require('child_process').fork(path.join(__dirname, '/ping.js'))
 process.on('message', function (msg) {
   child.send(msg)
 })

spec/fixtures/module/preload-ipc.js

@@ -1,4 +1,4 @@
-var ipcRenderer = require('electron').ipcRenderer
+const { ipcRenderer } = require('electron')
 ipcRenderer.on('ping', function (event, message) {
   ipcRenderer.sendToHost('pong', message)
 })

spec/fixtures/module/preload-pdf-loaded-in-nested-subframe.js

@@ -1,10 +1,10 @@
 const { ipcRenderer } = require('electron')
 
 document.addEventListener('DOMContentLoaded', (event) => {
-  var outerFrame = document.querySelector('#outer-frame')
+  const outerFrame = document.querySelector('#outer-frame')
   if (outerFrame) {
     outerFrame.onload = function () {
-      var pdframe = outerFrame.contentWindow.document.getElementById('pdf-frame')
+      const pdframe = outerFrame.contentWindow.document.getElementById('pdf-frame')
       if (pdframe) {
         pdframe.contentWindow.addEventListener('pdf-loaded', (event) => {
           ipcRenderer.send('pdf-loaded', event.detail)

spec/fixtures/module/preload-pdf-loaded-in-subframe.js

@@ -1,7 +1,7 @@
 const { ipcRenderer } = require('electron')
 
 document.addEventListener('DOMContentLoaded', (event) => {
-  var subframe = document.querySelector('#pdf-frame')
+  const subframe = document.querySelector('#pdf-frame')
   if (subframe) {
     subframe.contentWindow.addEventListener('pdf-loaded', (event) => {
       ipcRenderer.send('pdf-loaded', event.detail)

spec/fixtures/module/send-later.js

@@ -1,4 +1,4 @@
-var ipcRenderer = require('electron').ipcRenderer
+const { ipcRenderer } = require('electron')
 window.onload = function () {
   ipcRenderer.send('answer', typeof window.process, typeof window.Buffer)
 }