FAQ: Mouse Events - Chaining Events

This community-built FAQ covers the “Chaining Events” exercise from the lesson “Mouse Events”.

Paths and Courses
This exercise can be found in the following Codecademy content:

Web Development

Introduction to jQuery

FAQs on the exercise Chaining Events

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I’m wondering what exactly you can put in the parentheses after ‘mouseenter’:

.on('mouseenter', () => {

I’m wondering when you leave these parentheses empty, or when you can put something inside them and why.