Javascript – Events

You can execute javascript code when an event occurs. To happen this you need to add an event listener. You can add an event listener in Javascript or to an HTML element. Let’s see adding an event listener to an HTML element.

, <span>Javascript – Events</span>, KandZ

Now, in Javascript, you need to get the reference for the button.

, <span>Javascript – Events</span>, KandZ
, <span>Javascript – Events</span>, KandZ
callback function

Now, add the event listener

, <span>Javascript – Events</span>, KandZ

You can also write the callback function as an anonymous function

, <span>Javascript – Events</span>, KandZ

Another method to add the event listener is to add it in HTML using attributes:

, <span>Javascript – Events</span>, KandZ

You can remove an event listener this way:

, <span>Javascript – Events</span>, KandZ

THE END!!!

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