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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.
by fmihaila 9y 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.
- goatlover 9y agoHow is isNaN() implemented?
- Gaelan 9y agofunction 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.
- tambourine_man 9y agoWe really are deep in the realm of Philosophy.