Is there something about eventlistener in the certifications?

I glanced over the certifications and wondered if there is something about the topics eventlistener and onclick? Couldn’t find any lessons.

They are not directly covered but you can use them in the D3 and React projects as you need them. They may pop up incidentally elsewhere. These things are actually part of the HTML DOM and its API and not part of any framework (although the frameworks use/can use them) and the best information is at MDN.

The modern JS frameworks abstract away much of the need to use these functions so these have been pushed into the “learn as you need to on your own” list of concepts. If you’re building a page with D3 or React, you really don’t need much more than onclick and a few other interface functions and if you’re doing anything deeper than that then you probably know enough to figure it out.

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