Documentation is a very valuable resource for learning any programming language. Every programming language and library comes with documentation that explains how to use the various features of the language or library.
In the CodeHS editor, we make it very easy for students to find documentation so they can quickly find the information and examples they need to solve a problem. To find the docs, simply click the "Docs" tab in the right side of the screen:
In the Docs tab you'll find several examples and explanations showing how to use the various features of the language, in this case the A-Frame Virtual Reality library.
These docs give students a great starting place for the main features of A-Frame, but there are many more advanced features of A-Frame that students can explore by going to the full A-Frame documentation: