How to see output (for debugging purposes) on exercises

Since the new update, I don’t see the console anymore so if I get an exercise wrong, I don’t know why. For instance if a function is supposed to return 4, I see

Function should return 4

but it doesn’t show what my function returned so I know where I went wrong. How can this be seen?

There is an open Issue on GitHub to add console output to the test output window, but that functionality isn’t ready yet. In the mean time, you can always use the console of your browser’s development tools.