What's the type of Not a Number?
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In JavaScript, NaN means Not a Number. This is a special value that appears whenever JS can’t make sense of the numerical expression.
NaN also often appears during typecast. For example, if you try to convert the string into a number, the result will be NaN.
It may seem counterintuitive, but NaN is just a special number. Thus its type is considered to be number.
You can tackle this problem from a different angle and try to answer the question:
What else
typeof NaNcan be?
ANSWER: the typeof NaN is number, which will be logged to the console.
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