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文章标签：JavaScr

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  • Web/JavaScript/Equality_comparisons_and_sameness 简单地说，两等号判等会在比较时进行类型转换；三等号判等不会进行类型转换（如果类型不同会直接返回 false ）； Object.is 在三等号判等的基础上特别处理了 NaN 、 -0 和 +0 ...