What does calling preventdefault() on an event do? How is this en forced?

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What does calling preventdefault() on an event do? How is this en forced?..

Answer / Gaurav Kumar Sinha

Calling preventDefault() on an event object prevents the default action of the event from occurring. This can be useful to stop a browser's default behavior, such as following a link or submitting a form. In ActionScript, you can access the event object with the Event.currentTarget property and call preventDefault() like this: event.preventDefault(). The event object is often passed as a parameter to event handlers.

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