When a nested function is used in this way, it is often explicitly called a closure.

当某个内嵌函数被这样使用时, 它通常就被称作闭包.

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On a nested function call, Step Into steps into the most deeply nested function.

在嵌套函数调用上, “逐语句”将进入并单步执行嵌套最深的函数.

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Things are different if you save a reference to the nested function in the global scope.

但如果你在全局作用域上保存了对内嵌函数的引用,事情就不一样了.

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