Question

$(document).ready(function(){
  $('#something ul a').click(function(e) {
   ...
   ...
    e.preventDefault();
  })
});

what is the e for and the e.preventDefault mean so i can understand what is happening here

Answer 1

The e argument is the event object.
It contains information about the click event.

For more information, see the documentation.

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The preventDefault() method prevents the borwser’s default action for the event.
In this case, it will prevent the browser from navigating to the link.