add commas to a number in jQuery

Question

I have these numbers

10999 and 8094 and 456

And all i want to do is add a comma in the right place if it needs it so it looks like this

10,999 and 8,094 and 456

These are all within a p tag like this <p class="points">10999</p> etc.

Can it be done?

I've attempted it here with the help of other posts http://jsfiddle.net/pdWTU/1/ but can't seem to get it to work

Thanks

Jamie

UPDATE

Messed around a bit and managed to figure it out here http://jsfiddle.net/W5jwY/1/

Going to look at the new Globalization plugin for a better way of doing it

Thanks

Jamie

Answer 1

Works on all browsers, this is all you need.

  function commaSeparateNumber(val){     while (/(\d+)(\d{3})/.test(val.toString())){       val = val.toString().replace(/(\d+)(\d{3})/, '$1'+','+'$2');     }     return val;   } 

Wrote this to be compact, and to the point, thanks to regex. This is straight JS, but you can use it in your jQuery like so:

$('#elementID').html(commaSeparateNumber(1234567890)); 

or

$('#inputID').val(commaSeparateNumber(1234567890)); 

However, if you require something cleaner, with flexibility. The below code will fix decimals correctly, remove leading zeros, and can be used limitlessly. Thanks to @baacke in the comments.

  function commaSeparateNumber(val){    val = val.toString().replace(/,/g, ''); //remove existing commas first    var valRZ = val.replace(/^0+/, ''); //remove leading zeros, optional    var valSplit = valRZ.split('.'); //then separate decimals         while (/(\d+)(\d{3})/.test(valSplit[0].toString())){     valSplit[0] = valSplit[0].toString().replace(/(\d+)(\d{3})/, '$1'+','+'$2');    }     if(valSplit.length == 2){ //if there were decimals     val = valSplit[0] + "." + valSplit[1]; //add decimals back    }else{     val = valSplit[0]; }     return val;   } 

And in your jQuery, use like so:

$('.your-element').each(function(){   $(this).html(commaSeparateNumber($(this).html())); }); 

Here's the jsFiddle.