JavaScript事件循环如何处理异步代码执行
Ever wondered how JavaScript can fetch data from an API, wait for a timeout, and respond to user clicks, all without freezing your browser? It's not magic, it's the event loop. Even though...
JavaScript通过事件循环实现异步操作，允许在单线程中处理多个任务。主要组件包括调用栈、Web APIs、任务队列和微任务队列。事件循环确保主线程不被阻塞，任务完成后回调被添加到队列中，从而保持应用的快速响应。
