Web Worker

Web Worker 是一个很有意思的东东

简单理解一下

0 new Worker("src"); 创建一个worker

1 onmessage 接受信息

2 postMessage 发送信息

代码：

<!DOCTYPE html >

<html>
<head>
    <title></title>
    
</head>
<body>
<div id="show"></div>
</body>
<script>
    //web worker
    var show = document.getElementById("show");
    if (typeof (Worker) !== "undefined") {
        var worker = new Worker("demo.js");
        worker.postMessage("hello world!");
        worker.onmessage = function (event) {
            var data = event.data;
            show.innerHTML = data;
        }
    } else {

        show.innerHTML = "your browser does not support web worker";
    }
        

    </script>
</html>

demo.js 部分：

//postMessage("hello world!");

onmessage = function (event) {
    var data = event.data;
    postMessage(data);
};