TypeScript in React: Complete Action Checklist
Follow every step to fully type a real React project with TypeScript from scratch.
Based on: TypeScript in React - Full Tutorial by freeCodeCamp.org
Follow every step to fully type a real React project with TypeScript from scratch.
Based on: TypeScript in React - Full Tutorial by freeCodeCamp.org
What if every type error you shipped could have been caught before it ever reached production? If you've been writing React components and quietly hoping your props are the right type, you already know that uneasy feeling. TypeScript promises to fix it, but staring at a blank config file or a screaming red underline with no idea what it wants from you is genuinely frustrating. Most tutorials throw abstract concepts at you and leave you to figure out the real-world React patterns on your own. That gap between knowing TypeScript exists and actually knowing how to use it in a live React project is where a lot of developers get stuck.
Imagine opening a component file and knowing exactly how to type your useState hook, your props, your function callbacks, and your map return values without second-guessing yourself. Imagine your editor catching bugs before your users do. Imagine onboarding a teammate and having your codebase speak for itself because every function, every prop, and every state value is explicitly typed and self-documenting. That is what a properly typed React project feels like, and it is absolutely within your reach.
Rachel Johnson from freeCodeCamp.org walks you through exactly this transformation in a hands-on tutorial built around a real project called Assembly Endgame, a fully working hangman-style game. Rachel does not just explain TypeScript in the abstract. She refactors a real React app file by file, throwing challenges at you at every step so your fingers are always busy. She covers typing useState, functional component return values, inline props, custom prop types, imported types across files, utility types like Omit, and the often-confusing pattern of typing function props. By the end, the entire app is typed, and you have seen every common React-plus-TypeScript pattern applied in a real context.
This checklist captures every actionable step from Rachel's tutorial in the exact order she covers them. Whether you are following along with the video or working through a project on your own, this PDF gives you a precise, step-by-step reference so nothing slips through the cracks. Use it to type your first React project, review it before a technical interview, or keep it open while you refactor an existing codebase. Stop guessing at TypeScript syntax and start shipping code you can actually trust.
Every checklist item comes with actionable notes to guide you — things like "Don't forget to do this before you start," "Avoid this common mistake," or "Set a reminder for 30 days out." Nothing vague, just clear next steps.
+ 45 more action items inside...
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