The browser console:
If you would like to know how to get to the console in the browser of your choice, check this handy guide out
Using your terminal:
Yes! The terminal. Install node, and it provides you with a REPL interface
Instruction on how to install NodeJS can be found here
In an online sandbox:
If you do not have a code editor installed, you should. There are paid offerings like IntelliJ and WebStorm from JetBrains, but there are free options that will do just fine. VSCode and Sublime Text are the top two free code editors that I recommend.
That's all for today, folks. If you have any questions, please feel free to reach out to me at