Here's what is going on:
The typeof Number.parseInt('processed')'number'.
https://i.sstatic.net/1mpaI.png
However, when Number.parseInt('processed') results in NaN.
Here's what is going on:
The typeof Number.parseInt('processed')'number'.
https://i.sstatic.net/1mpaI.png
However, when Number.parseInt('processed') results in NaN.
Running Number.parseInt('string')NaN, a value categorized as number.
You can confirm this by checking it in the console of your browser:
The output of
typeof NaN === 'number'istrue
For further information and testing methods related to NaN, check out this informative guide on dealing with NaN.
NaN is a special value that stands for Not-A-Number.
Number.parseInt('processed') will return NaN
The result of typeof NaN is actually a number.
According to the ECMAScript standard, Numbers are required to be in IEEE-754 floating point format. This includes values like Infinity, -Infinity, and NaN.
NaN < 1; // false
NaN > 1; // false
NaN == NaN; // false
To accurately determine if a value is NaN, it's recommended to use either Number.isNaN() or isNaN().
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