How to remove space appearing before the string in textbox?

poornima · #1 01-23-2008, 01:10 AM

The following codes in javascript helps to remove the space appearing before the text.
<html>
<head>
<script type="text/javascript">
function Validate()
{
var e1= document.getElementById("textbox1").value;
document.getElementById("textbox1").value = (e1.replace(/^\W+/,'')).replace(/\W+$/,'');
var ElemValue = document.getElementById("textbox1").value;
if(ElemValue.length==0)
{
alert("Enter Value");
}
if(ElemValue.length!=0)
{
alert("The space before "+ElemValue+" is removed");
}
}
</script>
</head>
<body>
<input type="text" id="textbox1"></input>
<input type="button" id="btn1" value="Click" onClick="Validate()"></input>
</body>
</html>

Sathish Kumar · #2 01-23-2008, 02:42 AM

Hi,
Dont you have Trim function in Javascript.Cant you use

var str=" Hello ";
str =str.Trim();

Sathish Kumar · #3 01-23-2008, 02:50 AM

Hi,
For trimming the string in all the sides,use the following code

Code:

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; 
}

Sathish Kumar · #4 01-23-2008, 02:52 AM

Hi,
For trimming only the left part of the string ,you can use

Code:

function LeftTrim(var sString)
{
while (sString.substring(0,1) == ' ') 
   sString = sString.substring(1, sString.length); 

return sString ;
}

Sathish Kumar · #5 01-23-2008, 02:54 AM

Hi,
For trimming only the right part of the string ,you can use

Code:

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

poornima · #6 01-23-2008, 03:03 AM

Hi,
The Substring you have used works fine.But the Trim() doesn't work in JS.

leveup2 · #7 03-24-2009, 06:14 AM

I have the same problem and now it has been sorted!

mD1gCsjy · #8 03-25-2009, 10:28 AM

Hm, I agree, but here is an opinion

Kalimai · #9 06-18-2009, 01:30 AM

i need to remove all text from a text box that comes before the ":" and remove .... I have to type in several numbers before they start to appear from the right. ... What code would I use to go down the column and remove the spaces beween the ... how would I remove any text in a string that is between

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