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一篇文章带你了解JavaScript作用域
在JavaScript中,对象和函数也是变量。在JavaScript中,作用域是你可以访问的变量、对象和函数的集合。 在JavaScript中,对象和函数也是变量。在JavaScript中,作用域是你可以访问的变量、对象和函数的集合。 JavaScript 有函数作用域: 这个作用域在函数内变化。
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