Trim Function In Javascript

Following function trims an input string. The function not only removes leading
and trailing spaces but also any additional space in between the input string
function trim(inputString)
{
/*
Parameter inputString= String
Returns : Trimed String =String
Description : Following function trims an input string. The function not only
removes leading and trailing spaces but also any additional space in between
the input string

Writen By: Arshad Masood

*/
var interimString='';
var lastCharSpace=true;
var i;

for(i=0;i<inputString.length;i++)
{
if(inputString.charAt(i)==" ")
{
if(lastCharSpace==false)
{
interimString=interimString+inputString.charAt(i);
}
lastCharSpace=true;
}
else
{
interimString=interimString+inputString.charAt(i);
lastCharSpace=false;
}
}
//process for the last element
if(interimString.charAt(interimString.length-1)==" ")
{
interimString=interimString.substring(0,interimString.length-1);
}
return interimString;
}
This was last published in November 2000

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