Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript Asynchronous Programming with JavaScript Understanding Promises Handle Multiple Promises with Promise.all

Overwhelmed with this whole Promises concept

I'm sorry but this course has been a tough one to get through. Some of the things Guil talks about haven't yet been taught like the .map() iteration method, but he explains them in a way that assumes we understand what he's talking about. I know I can always refer to MDN docs for more information, but I just think it would be better not to overwhelm us with untaught concepts while trying to teach another new and fairly hard concept to grasp.

1 Answer

Steven Parker
Steven Parker
221,070 Points

You're right, this is perhaps the most complicated concept implemented in native JavaScript. You can expect it to take a bit of practice to get fully comfortable with it.

In the meantime, you might enjoy the JavaScript Array Iteration Methods course, which covers the map() array method among others.