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我还没搞懂 JS 中this指向及继承，直到有人向我这样解释它

 6 years ago
source link: https://juejin.im/post/5cfd9d30f265da1b94213d28
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在理解继承之前，需要知道 js 的三个东西： 什么是 JS 原型链 this 的值到底是什么 JS 的new 到底是干什么的 想阅读更多优质文章请猛戳GitHub博客,一年百来篇优质文章等着你！ 一、什么是 JS 原型链？ 我们知道 JS 有对象，比如

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