remove unwanted space and commas in JavaScript

Question

I want to remove all unnecessary spaces and commas from the start/end of the string.

eg; , 11,22,33 , should become 11,22,33

I tried this,

var str=",22,33,44,55,";
var splitted = str.split(",");
alert(splitted[0]);

But shows empty spaces

Answer 1

try:

var str=",22,33,44,55,";
str.replace(/^[\s,]+|[\s,]+$/g, '').split(",");