1. JavaScript声明提升的本质解析 在JavaScript开发中，声明提升（Hoisting）是个让新手开发者既困惑又着迷的概念。想象一下你正在调试一段代码，明明变量声明写在后面，却在前面就能访问到——这就是声明提升在"作怪"。这种现象源于JavaScript引擎在解释执行代码前的预处理阶段。

本指南以仓库主文档 README.md 为骨架，系统梳理其收录的 1000 道 JavaScript 面试题（当前目录列出 478 题，正文逐题给出详尽答案与代码示例），并按主题组织为对象与原型、函数式编程、作用域、异步、浏览器存储、事件机制、类型陷阱与编码实战等模块。读者学完本指南后，既能快速复习语言核心 ...

@devongovett I think what we really need is language-level chunking support that lets us capture the benefits of scope hoisting without incurring the costs of scope hoisting itself.

Creator of @parceljs and @lightningcss. Engineer @adobe working on React Aria and React Spectrum.

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