JavaScript - differences between onclick and addEventListener

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In this article, we would like to show you the differences between onclick and addEventListener in JavaScript.



  • with onclick you can't attach multiple events to the same element,

  • you can't add event handlers from different places in your code because you can only attach one event handler,

  • someone else may overwrite your event elsewhere in the code,


  • With addEventListener you can attach multiple events to the same element,
  • you can add event handling functions from different places in your code even for the same event,
  • the event can't be overwritten elsewhere in the code (new event handler will be added to the same event),
  • if you want to remove events that were added using addEventListener you must always have a handle to the function that was added with the addEventListener.

Alternative titles

  1. JavaScript - addEventListener vs onclick
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