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for (var i = 0; i < 3; i++) { var i = 'abc'; console.log(i); } // abc
这里为什么会只输出一个abc呢??求教
Originally posted by @brushbird in #82 (comment)
The text was updated successfully, but these errors were encountered:
因为没有单独的作用域,第一遍循环的时候就修改了 i 的值为 abc,所以不会接着执行了
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这里为什么会只输出一个abc呢??求教
Originally posted by @brushbird in #82 (comment)
The text was updated successfully, but these errors were encountered: