Jquery on focus event delegation - Javascript jQuery Method and Property

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Description

Jquery on focus event delegation

Demo Code

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<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://code.jquery.com/jquery-1.8.3.js"></script> 
      <script type="text/javascript">
    $(window).load(function(){/*ww  w .j  a va  2 s . co  m*/
var input = $("<input>").addClass("lastInput");
$("body").on("focus", "input.lastInput", function() {
  console.log('d');
});
$("body").append(input);
    });

      </script> 
   </head> 
   <body>  
   </body>
</html>

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