JavaScript Trim Function Example

In this tutorial we will learn how to remove white spaces from either sides of a string using javascript, usally all programming languages has built in function for trim but javascript don't have ... i am not getting in to any details... just give the code to do so... or in other words get the obvious stuff out of the way and let the code talk... the function mention below remove white space or any other char you specified.

Trim

removes white spaces from both side of the string

function trim(str, chars) {
 return ltrim(rtrim(str, chars), chars);
}

Right Trim

removes white spaces from right side of the string

function rtrim(str, chars) {
 chars = chars || "\\s";
 return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
}

Left Trim

removes white spaces from left side of the string

function ltrim(str, chars) {
 chars = chars || "\\s";
 return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
}

jQuery Trim

and last but not least jQuery if you it you have the power simply use the below mention function and you have a reason to smile :)

jQuery.trim(STRING_WITH_WHITE_SPACES);