✨ JavaScript Promise – 让异步操作变得简单
原文英文,约400词,阅读约需2分钟。发表于: 。👋Hello Coders Are you tired of nested callbacks and hard-to-follow asynchronous code? Let’s dive into JavaScript promises, an elegant way to handle asynchronous tasks, helping you write cleaner,...
JavaScript中的Promise用于管理异步操作,避免回调地狱。Promise有三种状态:待定、已完成和已拒绝。使用.then()处理成功,.catch()处理错误。Promise链简化多个异步操作,Promise.all()可并行处理多个Promise,使代码更清晰易读。