How do you see your console.log results?

I want to see how my code looks after console.log(11 + 11) for example.

Found the problem.

Download nodejs.
On linux: Go to terminal, write in

sudo apt install nodejs

You need node.js for the script to work.

If you want to run C, C++, C#, Java, PHP, Python, Rust or Assembly in Atom you can also download the package

exec-in-cmd

And then see your console logs