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

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

2 Answers 2

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+/)