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

10999

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

user_1860982 · Answer

Timothy Pirez answer was very correct but if you need to replace the numbers with commas Immediately as user types in textfield, u might want to use the Keyup function.

      $('#textfield').live('keyup', function (event) {
        var value=$('#textfield').val();

      if(event.which >= 37 && event.which <= 40){
          event.preventDefault();
      }
      var newvalue=value.replace(/,/g, '');   
      var valuewithcomma=Number(newvalue).toLocaleString('en');   
      $('#textfield').val(valuewithcomma); 

      });

user_2949104 · Answer

Using toLocaleString ref at https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString

function formatComma(value, sep = 0) {
      return Number(value).toLocaleString("ja-JP", { style: "currency", currency: "JPY", minimumFractionDigits: sep });
    }
console.log(formatComma(123456789, 2)); // ￥123,456,789.00
console.log(formatComma(123456789, 0)); // ￥123,456,789
console.log(formatComma(1234, 0)); // ￥1,234

user_2959713 · Answer

another approach:

function addCommas(nStr)
{
    nStr += '';
    x = nStr.split('.');
    x1 = x[0];
    x2 = x.length > 1 ? '.' + x[1] : '';
    var rgx = /(\d+)(\d{3})/;
    while (rgx.test(x1)) {
        x1 = x1.replace(rgx, '$1' + ',' + '$2');
    }
    return x1 + x2;
}
var a  = addCommas(10000.00);
alert(a);

Another amazing plugin: http://www.teamdf.com/web/jquery-number-format/178/

add commas to a number in jQuery

11 Answers