how to get integer values in a string with js

Question

var text = "rating-1-gray-3-blue";

i want to get value 13

how can i do this . basically i want to get all integers inside a string .

i tried with parseInt , but it returns int when the integer value is at the beginning of the string

thanks in advance

All integers in a string would result in [1, 3] for your example — Ja͢ck
– Ja͢ck, Commented Jan 23, 2013 at 11:45

VisioN · Accepted Answer · 2013-01-23 11:43:01Z

4

var result = +text.replace(/\D/g, "");  // 13

answered Jan 23, 2013 at 11:43

VisioN

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6 Comments

.. and reversed: var result = +text.match(/\d/g).join('');

@jAndy if only creating a new array makes any sense :)

it does. It's even slightly faster for me (Chrome). jsperf.com/regexp-vs-regexp-vs-regexp

@jAndy Any ideas why? replace does extra internal string iteration(s), while match not?

I honestly don't know the reason. Might even be because the different regexp matches \D vs. \d.

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Hanky Panky · Accepted Answer · 2013-01-23 11:46:16Z

2

var result=text.replace(/[^0-9]/g, '');

This removes all non 0-9 values from your string

answered Jan 23, 2013 at 11:46

Hanky Panky

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