Hi all....

Trimming strings in JavaScript

Thanks & Regards
Pvinoth.

Hi...


If you've worked with other C-based languages, like C, C++ or C#, you'll know that there's a very handy function called trim() which is able to automatically remove leading and trailing spaces from the string. Unfortunately, this function has been left out of JavaScript. However, you can easily make your own string trimming function, as shown below:

function strtrim(string)
{
//Remove leading spaces
while(string.charAt(0) == " ")
string = string.substring(1, string.length);

//Remove trailing spaces
while(string.charAt(string.length-1) == " ")
string = string.substring(string, string.length-1);

return string;
}

Then, to trim a string, simply use:

myString = strtrim(myString);

A better way to implement this function is to acutally add it to the string object, so the syntax is myString.trim() rather than strtrim(myString):

String.prototype.trim = function()
{
var string = this;

//Remove leading spaces
while(string.charAt(0) == " ")
string = string.substring(1, string.length);

//Remove trailing spaces
while(string.charAt(string.length-1) == " ")
string = string.substring(string, string.length-1);

return string;
}


thnx....

function trimAll(sString)
{
while (sString.substring(0,1) == ' ')
{
sString = sString.substring(1, sString.length);
}
while (sString.substring(sString.length-1, sString.length) == ' ')
{
sString = sString.substring(0,sString.length-1);
}
return sString;
}

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