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Tip of the Day
Language: Web
Expertise: Intermediate
Oct 25, 2001

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


LTrim(),RTrim(),Trim() Functions in JavaScript


JavaScript lacks the Trim() function. See below the code for trimming a string:
 
function LTrim(ValueToTrim)
{
ValueToTrim =ValueToTrim.toString()
var WhiteSpace=new String(" \t\r\n");
var i=0;
while(WhiteSpace.indexOf(ValueToTrim.charAt(i))>-1)
{
  i++;
}
return ValueToTrim.substring(i);
}

function RTrim(ValueToTrim)
{
	ValueToTrim =ValueToTrim.toString()
	var WhiteSpace=new String(" \t\r\n");
	var i=ValueToTrim.length-1;
        while(WhiteSpace.indexOf(ValueToTrim.charAt(i))>-1)
{
  i--;
}
return ValueToTrim.substring(0,i+1);
}

function Trim(ValueToTrim)
{
	return  LTrim(RTrim(ValueToTrim))
}

LTrim - Trims of Whitespace at beginning of the string.

RTrim - Trims of Whitespace at end of the string.

Trim - Trims whitespace at beginning and end of string.
Prasad Haridass
 
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