How to extract array of numbers from string in javascript

Question

Using javascript, I need to extract the numbers from this string:

[stuff ids="7,80"]

and the string can have anywhere from one to five sets of numbers, separated by commas (with each set having 1 or more digits) that need to be extracted into an array.

I've tried:

var input = '[stuff ids="7,80"]';
var matches = input.match(/ids="(\d*),(\d*)"/);

This will give me an array with 7 and 80 in it (I think), but how do I take this further so that it will return all of the numbers if there are more than two (or less than two)?

Further, is this even the best way to go about this?

Thanks for the help!

zerkms · Accepted Answer · 2013-04-19 03:05:21Z

9

var numbers = '[stuff ids="7,80"]'.match(/\d+/g);

\d+ matches any consecutive digits (which is number) and g modifier tells to match all

PS: in case if you need to match negative numbers:

var numbers = '[stuff ids="-7,80"]'.match(/-?\d+/g);

edited Apr 19, 2013 at 3:05

answered Apr 19, 2013 at 2:55

zerkms

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4 Comments

Vlad Over a year ago

This is awesome! Just a nitpick, it won't pick up the negative sign, i.e, for '[stuff ids="7,-80"]' it'll still return ["7","80"].

KingKongFrog Over a year ago

Or hex numbers :P but who's counting.

zerkms Over a year ago

@Vlad: yep, I kept that in mind but usually IDs are positive so I decided to not overcomplicate

Raevenne Over a year ago

@zerkms Thank you!! I was obviously making this terribly complicated on my own. I also appreciate the explanation of the regex. Wish I'd asked sooner. :-)

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