In this prep kit, we have a series of general algorithm practice questions, and general React practice problems.
In the Fundamentals folder, upon cding into it you'll need to run npm install in order to get jest - the testing library - installed, unless you don't want to validate the results. If you're ready to check your solutions, you can run npm run test while in the Fundamentals folder to validate all solutions, or if you'd like to check just one solution at a time, npm run test -- <filename.test.js> (ex: npm run test -- vowel-count.test.js)
In the React folder, each problem will be a distinct project that you'll need to individually run npm install in, and each project will have its own README with additional details about setup and testing.