How to Remove last Comma?

Question

This code generates a comma separated string to provide a list of ids to the query string of another page, but there is an extra comma at the end of the string. How can I re

Answer 1

Using substring

var strNumber = "3623,3635,";

document.write(strNumber.substring(0, strNumber.length - 1));

Using slice

document.write("3623,3635,".slice(0, -1));

Using map

var strNumber = "3623,3635,";

var arrData = strNumber.split(',');

document.write($.map(arrData, function(value, i) {
  return value != "" ? value : null;
}).join(','));

Use Array.join

var strNumber = "3623,3635,";
var arrTemp = strNumber.split(',');
var arrData = [];

$.each(arrTemp, function(key, value) {
  //document.writeln(value);
  if (value != "")
    arrData.push(value);
});

document.write(arrData.join(', '));