Question

81

rated 0 times [ 87] [ 6] / answers: 1 / hits: 151182 / 12 Years ago, fri, october 12, 2012, 12:00:00

Any number, it's number. String looks like a number, it's number. Everything else, it goes NaN.

'a' => NaN

'1' => 1

1 => 1

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3 Years ago

answered 12 Years ago bradleymoisesy · Accepted Answer

There are 4 ways to do it as far as I know.

Number(x);

parseInt(x, 10);

parseFloat(x);

+x;

By this quick test I made, it actually depends on browsers.

Implicit marked the fastest on 3 browsers, but it makes the code hard to read… So choose whatever you feel like it!