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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.

You're right but, its not your fault, treehouse has the Full Stack and Front end Track both out of order. You don't learn about .map, .filter until you get in to The JavaScript Array Iterations Methods course. Which is not even mentioned in the JS Full Stack Track or Front End Development Track at all. And the OOP JavaScript course when you learn about "constructor" methods is 2 courses after The Asynchronous Programming course in the Full Stack Track.

I learned that around this time last year, so I stopped this course and went to the and did the Array Iteration Methods course and the OOP JavaScript course then came back to Asynchronous Programming Course. Then it made a lot of sense and made the course easier.

I don't know why Treehouse won't fix the course order to put those courses before you get into the Asynchronous Programming course.

1 Answer

Steven Parker
Steven Parker
229,644 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.