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?

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?

• javascript

Share Improve this question Follow asked May 29, 2013 at 0:26 David542David542 111k206206 gold badges571571 silver badges1k1k bronze badges 1

• 1 possible duplicate of Javascript: strip out non-numeric characters from string – Brendan Long Commented May 29, 2013 at 0:28

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2 Answers 2

Sorted by: Reset to default 7

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

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

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