index.html
<!DOCTYPE html>
<html>
<head>
<title>JavaScript Worker Example</title>
</head>
<body>
<script>
// 主线程
const mainWorker = new Worker('worker.js');
debugger;
// 向 worker 发送消息
mainWorker.postMessage('Hello from main thread!');
// 接收 worker 返回的消息
mainWorker.onmessage = function(event) {
console.log('Received message from worker:', event.data);
};
// 监听 worker 错误
mainWorker.onerror = function(error) {
console.error('Error from worker:', error.message);
};
</script>
</body>
</html>
// worker.js
// Worker 线程处理逻辑
// 接收消息并处理
self.onmessage = function(event) {
debugger;
console.log('Received message from main thread:', event.data);
// 模拟一些计算任务
const startTime = Date.now();
while ((Date.now() - startTime) < 2000); // 休眠一段时间模拟计算任务
// 返回消息给主线程
self.postMessage('Hello from worker!');
};
http-server
用这个启动服务
标签：worker,Worker,mainWorker,message,js,event From： https://www.cnblogs.com/angdh/p/17805201.html