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This article mainly introduces js how to achieve the comparison between types, the article introduces in great detail, has a certain reference value, interested friends must read it!

Comparison between types

What is the result of the print above? As a result, "what should I do" was printed. The reason is that b is in

During the comparison, b is converted into an invalid number NaN, and "the specification setting NaN is neither greater nor less than any value". The result of the comparison is false because neither 42 = = NaN nor "42" = = "suyan" can be true.

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