Replace First Character in text box

**JohnSmith** · Apr 7th, 2005, 09:30 PM

I have a text box and I want to have a fucntion that if the first character is T and the next character is a number then replace the T with a space and then trim the space...

Ex: Text box= T1455

Result: (no space)1455

**mendhak** · Apr 8th, 2005, 01:42 AM

Use RegEx to do your replacing.
You can use [T][0-9] as your regex string, and if a match occurs, you do the replace the T.

Something like

if stringname.match("[T][0-9]")
{
//remove first letter
}

**Psyrus** · Apr 8th, 2005, 06:24 AM

This should work:

HTML Code:

<html>
<head>
<title>String Fun</title>
<script type = "text/javascript">
   function trimString(s){
      var len = s.length;
      if(s.match(/^(T|t){1}\d+$/)){
         frmMain.txtString.value = s.substring(1,len);
      }
   }
</script>
</head>
<body>
<form ID = "frmMain">
<input type = "text" ID = "txtString" value = "" />
<input type = "button" value = "Trim" onclick = "trimString(txtString.value);" />
</form>
</body>
</html>

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