Ptt 大爆卦 | JavaScript let - 前往 https://stackoverflow.com/questions/762011/whats-the-difference-between-using-let-and-var

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What's the difference between using "let" and "var"? - Stack ...

let allows you to declare variables that are limited in scope to the block, statement, or expression on which it is used. This is unlike the var keyword, which ...

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