JavaScript var let const的区别 - Web前端工程师面试题讲解

JavaScript var let const的区别 - Web前端工程师面试题讲解

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為甚麼寫JS要用let/const不用var? 了解Javascript變數作用範圍和Code Block是甚麼
為甚麼寫JS要用let/const不用var? 了解Javascript變數作用範圍和Code Block是甚麼
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