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JavaScript DOM Scripting By Example Adding and Removing Names RSVP Checkbox

Mihail Mitrevski
Mihail Mitrevski
Full Stack JavaScript Techdegree Student 8,430 Points

What is the meaning of the 'change' event on addEvenetListener when we use checkboxes?..

I can't quite understand the meaning of the 'change'..and what if we have more events on the list despite checkboxes..how can we target them?..

1 Answer

Clayton Perszyk
Clayton Perszyk
Treehouse Moderator 48,577 Points

Change is an event. and when you attach it to an element via addEventListener, you are basically watching to see if that element changes, and if it does run a callback function (i.e. the second argument to addEventListener). If in the case of a checkbox, a user clicks the check box, that causes the change event to be triggered, and the callback function to be run.

So it basically allows you to run code when an input element changes.