How to remove extra character added while concatinating string in a loop in JavaScript?

am concatinating a string inside a for loop

var s="";
for(var i=1;i<=10;i++)
{
    s=s+"'"+"id"+i+"',";
}
document.write(s);

Output I got is

'id1','id2','id3','id4','id5','id6','id7','id8','id9','id10',

I am trying to get the result as

'id1','id2','id3','id4','id5','id6','id7','id8','id9','id10'

How can I remove the extra , added an the end?

Fiddle

Answer

You can use a array of strings and then join the string like

var s = [];
for (var i = 1; i <= 10; i++) {

    s.push("'id" + i + "'");
}
var string = s.join();

Demo: Fiddle