Can't see results of code in JS challenges

I’m going through the JavaScript challenges, and I can’t find a way to show the results of the code I’m writing. There seem to be indications in the exercises that I should be able to test or run the code. How can I do that?

I see that below the code-writing window there is another window which says “your test output will go here”, but when I run the test, down there it only says “test completed”.

If the tests fail, their messages will be shown in that window. There is a issue being worked to also print any console statements to that window. In the mean time you can use your browser’s dev tools to see console output.