Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript and the DOM (Retiring) Responding to User Interaction Delaying Execution with setTimeout()

Posted by Mahmoud Nasser
Mahmoud Nasser
5,507 Points

Passing functions to functions as Arguments

I still dont understand the Concept of passing functions to functions as parameters and why is useful ??! could someone help please!!

1 Answer

Martin Coutts
Martin Coutts
18,154 Points
Martin Coutts
Martin Coutts
18,154 Points

A callback function is the code block you want your method to “callback” to. So after the 3000 milliseconds the code inside the function will execute, for example logging something to the console. This gets used a lot in other languages as well. Hope this helped.