preventDefault verhindert, dass die vorgesehene Aktion des HTML-Elements durchgeführt wird, z.B., um das Formular mit Javascript zu prüfen, bevor es an die Anwendung auf dem Server geschickt wird.The preventDefault () method cancels the event if it is cancelable, meaning that the default action that belongs to the event will not occur. For example, this can be useful when: Clicking on a “Submit” button, prevent it from submitting a form
What does the preventDefault method do?
The preventDefault() method cancels the event if it is cancelable, meaning that the default action that belongs to the event will not occur. For example, this can be useful when: Clicking on a “Submit” button, prevent it from submitting a form; Clicking on a link, prevent the link from following the URL; Note: Not all events are cancelable.
What does preventDefault do in Salesforce?
Definition and Usage. The preventDefault() method cancels the event if it is cancelable, meaning that the default action that belongs to the event will not occur.
What happens when I call preventDefault () during event flow?
Calling preventDefault () during any stage of event flow cancels the event, meaning that any default action normally taken by the implementation as a result of the event will not occur. You can use Event.cancelable to check if the event is cancelable. Calling preventDefault () for a non-cancelable event has no effect.
How do I prevent the default action of an element?
The event.preventDefault () method stops the default action of an element from happening. For example: Prevent a submit button from submitting a form. Prevent a link from following the URL. Tip: Use the event.isDefaultPrevented () method to check whether the preventDefault () method was called for the event.
