Code that only runs in a straight line can't make decisions or handle changing inputs. In this module, you'll write IF and switch conditional blocks to route your program based on specific conditions, then build FOR and WHILE loops to automate repetitive actions so your code can do more with less.

Functions are how programmers package logic so it can be named, reused, and reasoned about in isolation. In this module, you'll define and call functions, control where variables can be accessed using scope and closure, and build recursive functions that solve problems by calling themselves, so your code can handle complexity without becoming unmanageable.

Writing code without a plan is how bugs get written instead of solutions. In this module, you'll apply a structured framework to deconstruct algorithm prompts into inputs, outputs, goals, conditions, and exceptions, then build test functions to verify that your algorithms produce the results you intended.

One of the most powerful habits a developer can build is reaching for existing, well-maintained code before writing their own. In this module, you'll navigate the NPM registry to find, install, and use third-party packages in a JavaScript project, then explore GitHub repositories to evaluate open-source libraries and find code you can use and build on.

JavaScript alone can tell a computer what to do, but HTML and CSS are what make it visible and usable on screen. In this module, you'll combine all three languages to render a styled, interactive web page from scratch, then apply everything you've built in the course to create a fully playable browser game.

Finishing a course is a beginning, not an end. Now, you'll consolidate what you've built across this course, identify the resources and communities that will carry your JavaScript skills further, and commit to a concrete next step in your development practice.