The NaN != NaN thing has little to do with Javascript and everything to do with implementing a standard:
This is a follow up question to What is the rationale for all comparisons returning false for IEEE754 NaN values? (I think this is better as another question than a comment). It has a very good answer which is missing exactly 1 important thing: why is NaN != NaN?
NaN != NaN
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The NaN != NaN thing has little to do with Javascript and everything to do with implementing a standard:
This is a follow up question to What is the rationale for all comparisons returning false for IEEE754 NaN values? (I think this is better as another question than a comment). It has a very good answer which is missing exactly 1 important thing: why is
NaN != NaN?…