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by fmihaila 3246 days ago
NaN is not a name for one thing. You could think of not a number as not any particular thing. There is no comparison with itself, because there is no it.
2 comments
goatlover 3246 days ago
How is isNaN() implemented?
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Gaelan 3246 days ago 

    function isNaN(x) { return x !== x }
It’s a native browser function so it may not actually be done that way, but that’s one way you could do it.
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tambourine_man 3246 days ago
We really are deep in the realm of Philosophy.
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