javascript - form event target undefined -


i’ve been using below patter many occasion, @ occasion event.target undefined. explain why ?

<script language="javascript">         function validateform(e){         var event = e || window.event;         var trigger = event.target || event.srcelement;          console.log(trigger);         return false;        }     </script>      <form name="my_form" action="" method="post" onsubmit="return validateform(this)">     <input type="submit" value="ok"></input> </form>

fiddle

it because e in validateform points <form> , not event. if console.log(e) in function see talking about.


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