A Practical Guide to Using Web Workers for Front‑End Performance Optimization
This article introduces Web Workers as an HTML5 API for running background threads, explains their creation and communication mechanisms, provides a complete Fibonacci calculation demo with full source code, and discusses common pitfalls such as asynchronous postMessage behavior, data serialization, and proper thread termination.
斐波那契数列
function startCalculation() { // 创建一个 Web Worker，指定 worker.js 为工作线程脚本 const worker = new Worker('worker.js'); worker.postMessage(20); // 监听工作线程返回的消息 worker.onmessage = function(event) { document.getElementById('result').innerHTML = '斐波那契数列的第20项是：' + event.data; // 通知关闭线程 worker.postMessage('close'); }; }
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