Code Console

Question

I saw that some people use several code consoles in their programs, I would like to know how to do it if someone can help me

Answer 1

I see
I think SoloLearn supports mix of HTML, CSS and JS out of the box because they are the three musketeers of web development.

But we can't just go ahead and arbitrarily mix languages, although some knowledgeable people can, but they really know what they're doing.

Answer 2

What exactly did you mean "several code consoles"?

Any link to such code to share here?

Answer 3

Codes like that with HTML + CSS + JS