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getElementsByName() property in HTML

getElementsByName() property in HTML 

 
getElementsByName()  property access all elements which we will specify in it.
  1. <html>  
  2.     <head>  
  3.         <script type="text/javascript">  
  4. function getNumberOfElements()  
  5. {  
  6. var x=document.getElementsByName("btn");  
  7. alert(x.length);  
  8. }  
  9. </script>  
  10.     </head>  
  11.     <body>  
  12.         <input name="btn" type="button" value="First" />  
  13.         <input name="btn" type="button" value="Second" />  
  14.         <input name="btn1" type="button" value="Third" />  
  15.         <input name="btn" type="button" value="Forth" />  
  16.         <input name="btn" type="button" value="Fifth" />  
  17.         <input name="btn" type="button" value="Sixth" />  
  18.         <br />  
  19.         <br />  
  20.         <input type="button" onclick="getNumberOfElements()" value="Click here to find the number of elements that have the same name" />  
  21.     </body>  
  22. </html>  
In this example, the alert box shows the number of button elements (btn).
 
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