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

you can use below extension method:

String.prototype.trimEnd = function (c) {
    c = c ? c : ' ';
    var i = this.length - 1;
    for (; i >= 0 && this.charAt(i) == c; i--);
    return this.substring(0, i + 1);
}

So that you can use it like :

var str="hello,";
str.trimEnd(',');

Output: hello.

for more extension methods, check below link: Javascript helper methods