Welcome to Rithm’s free JavaScript fundamentals prep course! The material here will guide you through the basics of JavaScript. You’ll learn how to store data in variables, work with data structures like arrays and objects, write code that runs only if certain conditions are met, and write functions. You’ll learn more about patterns including callback functions, closure and recursion to write more complex programs. By the end of the course, you’ll be able to build simple games entirely in JavaScript!

When you’re ready, get started with Introduction to JavaScript. If you feel like you’ve got a good grasp on the material below, feel free to move onto our Intermediate JavaScript course. We’re around to help you if you get stuck, so be sure to reach out with any questions you might have. Good Luck!