In this lesson, you'll learn how to set up a "live scratchpad" for JavaScript using an extension called [Quokka](https://marketplace.visualstudio.com/items?itemName=WallabyJs.quokka-vscode). Similar to JS Bin, CodePen, or CodeSandbox, Quokka lets you run some JavaScript code right from VSCode without leaving your text editor. This is a handy tool for debugging or isolating code when you want to quickly test something out. To learn more about Quokka, check out their website at [quokkajs.com](https://quokkajs.com/).