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@@ -786,7 +786,7 @@ cancel the request.
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If no event listener is added for this event, all bluetooth requests will be cancelled.
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-```javascript
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+```javascript title='main.js'
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const { app, BrowserWindow } = require('electron')
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let win = null
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@@ -1631,7 +1631,7 @@ ipcMain.on('open-devtools', (event, targetContentsId, devtoolsContentsId) => {
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An example of showing devtools in a `BrowserWindow`:
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-```js
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+```js title='main.js'
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const { app, BrowserWindow } = require('electron')
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let win = null
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@@ -1714,40 +1714,14 @@ Algorithm][SCA], just like [`postMessage`][], so prototype chains will not be
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included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
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throw an exception.
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-> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
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-> special Electron objects will throw an exception.
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-
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-The renderer process can handle the message by listening to `channel` with the
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-[`ipcRenderer`](ipc-renderer.md) module.
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-
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-An example of sending messages from the main process to the renderer process:
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+:::warning
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-```javascript
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-// In the main process.
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-const { app, BrowserWindow } = require('electron')
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-let win = null
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+Sending non-standard JavaScript types such as DOM objects or
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+special Electron objects will throw an exception.
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-app.whenReady().then(() => {
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- win = new BrowserWindow({ width: 800, height: 600 })
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- win.loadURL(`file://${__dirname}/index.html`)
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- win.webContents.on('did-finish-load', () => {
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- win.webContents.send('ping', 'whoooooooh!')
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- })
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-})
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-```
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+:::
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-```html
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-<!-- index.html -->
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-<html>
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-<body>
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- <script>
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- require('electron').ipcRenderer.on('ping', (event, message) => {
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- console.log(message) // Prints 'whoooooooh!'
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- })
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- </script>
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-</body>
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-</html>
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-```
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+For additional reading, refer to [Electron's IPC guide](../tutorial/ipc.md).
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#### `contents.sendToFrame(frameId, channel, ...args)`
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Erick Zhao