parseInt alternative with characters in string

Question

If I have the following:

(8

Is there a way to get the number 8 out of it without splitting it? Using parseInt returns NaN. Is there an alternative to parseInt that ignores non-numbers?

possible duplicate of [Javascript: strip out non-numeric characters from string](http://stackoverflow.com/questions/1862130/javascript-strip-out-non-numeric-characters-from-string) — Brendan Long, May 29 '13 at 00:28

score 7 · Accepted Answer · answered May 29 '13 at 00:28

7

parseInt(str.replace(/[^\d]/g, ''), 10)

answered May 29 '13 at 00:28

SLaks

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score 3 · Answer 2 · answered May 29 '13 at 00:29

3

You can use a quick regex to match that number, and just prepend + to cast to number:

var num =+ '(8'.match(/\d+/)

answered May 29 '13 at 00:29

elclanrs

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parseInt alternative with characters in string

2 Answers2