在此页

• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

message event is fired on a DedicatedWorkerGlobalScope object when the worker receives a message from its parent (i.e. when the parent sends a message using Worker.postMessage() ).

冒泡	No
可取消	No
接口	MessageEvent
事件处理程序特性	onmessage

范例

This code creates a new worker and sends it a message using Worker.postMessage() :

const worker = new Worker("static/scripts/worker.js");
worker.addEventListener('message', (event) => {
    console.log(`Received message from worker: ${event.data}`)
});
					

The worker can listen for this message using addEventListener() :

// inside static/scripts/worker.js
self.addEventListener('message', (event) => {
    console.log(`Received message from parent: ${event.data}`);
});
					

Alternatively, it could listen using the onmessage 事件处理程序特性：

// static/scripts/worker.js
self.onmessage = (event) => {
    console.log(`Received message from parent: ${event.data}`);
};
					

规范

规范	状态
HTML 实时标准	实时标准

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
message event	Chrome 4	Edge 12	Firefox 3.5	IE 10	Opera 10.6	Safari 4	WebView Android 37	Chrome Android Yes	Firefox Android 4	Opera Android 11.5	Safari iOS 5.1	Samsung Internet Android Yes

图例

完整支持

完整支持

另请参阅

• 相关事件： messageerror .
• Worker.postMessage() .

元数据

• 最后修改： Apr 4, 2019

相关话题

1. DedicatedWorkerGlobalScope
2. 特性

   1. 名称
   2. onmessage
   3. onmessageerror
3. 方法

   1. close()
   2. postMessage()
4. 事件

   1. message
   2. messageerror
5. 继承：

   1. WorkerGlobalScope
   2. EventTarget