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一次搞定闭包和this | hpoenixf's blog
source link: http://hpoenixf.com/%E4%B8%80%E6%AC%A1%E6%90%9E%E5%AE%9A%E9%97%AD%E5%8C%85%E5%92%8Cthis.html
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闭包和this，是两个相当高频的考点，然而你有没有想过，实际上他们两个都跟同一个知识点相关？ 有请我们的这篇文章的主角，执行上下文 执行上下文执行上下文是什么可以简单理解执行上下文是js代码执行的环境，他的组成如下 123456executionContextObj = { this: 对的就是你关注的那个this, VO：变量对象, scopeChain: 作用域链,跟闭包相关&
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