javascript split string at parts [duplicate]

Question

Possible Duplicate:
Format numbers in javascript

I have a string represents a number: "3507654" I need to split it on a parts, by 3, e.g "3 507 654"

Number can be any value, but always a number.

Gumbo · Accepted Answer · 2010-07-19 11:57:56Z

8

You could do the following:

"3507654".replace(/(\d)(?=(?:\d{3})+$)/g, "$1 ")

But this is not very efficient since it’s O(n²).

answered Jul 19, 2010 at 11:57

Gumbo

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5 Comments

nice answer. regex FTW.

… and there's a leading space if the number has 3n digits.

Real nice answer. Definitely +1

@Kenny: I was just about to mention how to fix that, but Gumbo updated his answer to include the fix already. +1.

thanks, very elegants and hackers :) +1