JavaScript

Check The Validation For Only Integer Number

  1. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
  2. <html>  
  3.    <head>  
  4.       <title>Sample Code</title>  
  5.       <script type="text/javascript">  
  6.          function CheckInteger(b)   
  7.          {  
  8.             var a = /(^-?\d\d*$)/;  
  9.             if (a.test(b))   
  10.             {  
  11.             alert('Your Given Input "' + b + '" Is Correct.')  
  12.          }   
  13.          else   
  14.          {  
  15.             alert('Your Given Input"' + b + '" Is Not Correct.')  
  16.          }};        
  17.       </script>  
  18.    </head>  
  19.    <body bgcolor=#00ff00 alink=blue vlink=blue>  
  20.       <FORM name="windowEvent">  
  21.          Number : <input type="text" name="txtnumber" />  
  22.          <input type="button" value="Check Integer" name="btnCheckInteger" onClick="CheckInteger(txtnumber.value)" />  
  23.       </FORM>  
  24.    </body>  
  25. </html> 
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