calling mechanism of jquery function with $.exists() - Javascript jQuery Method and Property

Javascript examples for jQuery Method and Property:exist

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Description

calling mechanism of jquery function with $.exists()

Demo Code

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<html>
 <head> 
  <meta name="viewport" content="width=device-width, initial-scale=1"> 
  <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> 
  <script type="text/javascript">
    $(window).load(function(){//from   ww w.  ja v  a 2  s  . c  o m
$(function() {
    $.exists = function (selector) {
        return $(selector).length > 0;
    }
    console.log($.exists('#test'));
});
    });

      </script> 
 </head> 
 <body> 
  <div id="test"></div>  
 </body>
</html>

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