How do i run multiple files in the code playground

Question

is there a way, for example to run 2 js files simultaneously

Answer 1

You can make multiple codes, but you can't link files together and run multiple, except for HTML CSS and JS files, which are automatically linked together.

Answer 2

For C++ header and source,

The playground does not allow it

Answer 3

It only works for web codes as @ChessMaster said HTML, CSS, Javascript, and PHP.