숫자에 콤마 찍기

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/** *   숫자에 콤마 찍기 */ AddComma = function(number) {     var commaNumber = "";     var no                  = 0;     var number          = String(number);     for(var i = number.length-1; i >= 0; i--) {         if(no%3 == 0 && i < number.length-1) {             commaNumber = "," + commaNumber;         }         commaNumber     = String.fromCharCode(number.charCodeAt(i)) + commaNumber;         no++;     }     return commaNumber; }