JS converts numbers into three-character comma-separated styles

Source: Internet
Author: User

JS converts numbers into three-character comma-separated styles

This article mainly introduces how to convert numbers into three-character comma-separated styles (Sample Code) in Javascript. If you need them, you can refer to them and hope to help you.

The Code is as follows:

Function formatNum (num)


If (! /^ (+ | -)? (D +) (. d + )? $/. Test (num) {alert ("wrong! "); Return num ;}

Var a = RegExp. $1, B = RegExp. $2, c = RegExp. $3;

Var re = new RegExp (). compile ("(d) (d {3}) (, | $ )");

While (re. test (B) B = B. replace (re, "$1, $2 $3 ");

Return a + "" + B + "" + c;







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