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test.html
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<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>测试JS线程池</title>
<script src="index.js"></script>
</head>
<body>
<ul>
<li>请移动鼠标。如果持续有文字输出，证明后台任务没有阻塞 UI</li>
</ul>
<script>
'use strict';
const arr = Array.from({ length: 819200 }, () => Math.random() * 10000);
console.time('all')
const pool = new ThreadPool(arr => {
return arr.sort();
}, 5);
const promises = [];
for (var i=0; i<20; ++i) {
let index = i;
console.time(index);
promises.push(pool.dispatch(arr)
.then(res => console.log(res))
.catch(err => console.error(err))
.then(() => console.timeEnd(index)));
}
Promise.all(promises).then(() => console.timeEnd('all'));
</script>
<script>
'use strict';
const ul = document.querySelector('ul');
document.onmousemove = e => {
const li = document.createElement('li');
li.textContent = `${e.timeStamp | 0}: ${e.screenX}, ${e.screenY}`;
ul.appendChild(li);
li.scrollIntoView();
}
</script>
</body>
</html>