JQuery checkbox checking

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Sometimes Jquery.attr('checked','checked') does not work for many cases.
Jquery newest attribute manipulator .prop() can be used as follows


checking  

$(document).ready(function(){ 
   $('#btn').click(function(){ 
      $('#chk').removeProp('checked'); 
      $('#chk').prop('checked','checked'); 
   }); 
});

http://jsfiddle.net/yxCnK/


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