You can even sometimes run commands inline to see how stuff reacts.

It's honestly not a bad way to write some of the more complex lines of code too. In python/vscode(ium), you can set a breakpoint where you're writing your code and then write the next line in the watches section. That way you can essentially see a live version of the result you're getting. I especially like this for stuff like list comprehension, or indexing logic where you might normally expect a possible off by one or key error.