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2.3.1 简短变量声明这一节，有一段理解起来很晦涩 #70

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kirkzhangtech opened this issue Jul 19, 2022 · 0 comments

kirkzhangtech commented Jul 19, 2022

简短变量声明语句只有对已经在同级词法域声明过的变量才和赋值操作语句等价，如果变量是在外部词法域声明的，那么简短变量声明语句将会在当前词法域重新声明一个新的变量。我们在本章后面将会看到类似的例子

上面这一段，初读时候感觉很晦涩，应该是说，简短变量声明语句只有对已经在同级变量作用域声明过的变量才和赋值操作语句等价

kirkzhangtech changed the title ~~2.3.1 尖端变量声明这一节，有一段理解起来很晦涩~~ 2.3.1 简短变量声明这一节，有一段理解起来很晦涩

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