HTML5 - Sử dụng web worker để ngắt trang web đang hoạt động

Sử dụng web worker để ngắt trang web đang hoạt động

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Start/Stop Web Worker in HTML5</title>
<script>
    // Set up global variable
    var worker;
    
    function startWorker() {
        // Initialize web worker
        worker = new Worker("/examples/js/worker.js");
        
        // Run update function, when we get a message from worker
        worker.onmessage = update;
        
        // Tell worker to get started
        worker.postMessage("start");
    }
    
    function update(event) {
        // Update the page with current message from worker
        document.getElementById("result").innerHTML = event.data;
    }
    
    function stopWorker() {
        // Stop the worker
        worker.terminate();
    }
</script>
</head>
<body>
    <h1>Web Worker Demo</h1>
    <button onclick="startWorker();" type="button">Start web worker</button>
    <button type="button" onclick="stopWorker();">Stop web worker</button>
    <div id="result">
        <!--Received messages will be inserted here-->
    </div>
</body>
</html>

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