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如果一个全局变量没有事先声明，那么在控制台能否输出它的值？ #298

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pwstrick opened this issue Jul 16, 2019 · 1 comment

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JavaScript

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pwstrick commented Jul 16, 2019

如果一个全局变量没有事先声明，那么在控制台能否输出它的值？

pwstrick added the JavaScript label

1477553657 commented May 6, 2021

不能会报错堵塞后面的脚本执行

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