Your Ad Here

advanced code snippet search

Posted By

brianyang on 09/04/09


Tagged

form element require digit


Versions (?)

require at least one digit

 / Published in: JavaScript
 
Expand | Embed | Plain Text 
  1. <script language="JavaScript1.2">
  2.         function requireDigit(){
  3.             var needDigit = /\d/
  4.             if (document.myform.myinput.value.search(needDigit) == -1) 
  5.                 alert("at least one number req'd")
  6.             else {
  7.                 alert('alright we see your digit(s)')
  8.             }
  9.         }
  10.     </script>
  11.     <form name="myform">
  12.         <input type="text" name="myinput" size=15><input type="button" onClick="requireDigit()" value="check">
  13.     </form>

Report this snippet  

You need to login to post a comment.