React 101
Build interactive React apps with reusable components.
React 101 introduces developers to building interactive, component-driven web interfaces using the React JavaScript library, with focused coverage of JSX, components, props, state, and hooks.
Designed for learners with basic HTML and JavaScript familiarity, this course emphasizes applied projects and interactive exercises that teach you to compose reusable components and manage application state with hooks. It suits front‑end developers and self‑taught coders who want practical, portfolio‑ready React experience without immediately diving into large‑scale architecture concerns.
At a Glance
React 101 is an introductory course that teaches how to build interactive web interfaces using the React JavaScript library.
It is taught by Codecademy’s curriculum team led by Jiwon Shin and covers core React concepts such as JSX, components, state, props, hooks, and common component patterns.
| Level | Intermediate |
| Rating | 4.4 out of 5 |
| Duration | 10+ hours |
| Languages | English |
| Learners | 100K+ learners |
| Certificate | Certificate of completion (available with paid plan) |
| Access | Access while subscription is active |
| Course includes |
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| Price | Free access to core content; certificate and extra features require paid subscription |
What This Course Teaches
The course frames outcomes as practical, demonstrable skills you can use when building React interfaces.
By the end of the course learners should be able to implement core React patterns, manage component state with hooks, and compose modular components for reusable user interfaces.
How the Course Is Structured
The course is organized into seven focused modules that combine short lessons with interactive, hands-on practice and project work.
Overall, learners should expect roughly 10+ hours to complete the full course at a steady pace.
Curriculum overview
01 JSX ▾
Learn to use JSX, the basic syntax of React.js.
02 React Components ▾
Learn to make React components, the building blocks of all React applications.
03 Components Interacting ▾
Learn how to make React components interact with one another.
04 Hooks ▾
Learn how to use Hooks in React, a powerful feature of function components.
05 React Programming Patterns ▾
Learn React programming patterns for mixing components with and without state.
06 React Styles ▾
Learn how to apply styles to React apps and choose approaches to keep styles organized and manageable.
07 React Forms ▾
Learn how to create and interact with forms in React applications.
Audience & Requirements
React 101 is designed for learners who want to add React to their front‑end toolkit or prepare for junior front‑end roles.
It is intended for people with foundational web knowledge—particularly those who have completed or can demonstrate equivalently strong HTML and JavaScript skills.
- Career changers preparing for junior front‑end developer roles.
- Front‑end or full‑stack developers adding React to their stack.
- Bootcamp students who need a focused introduction to React.
- Self‑taught coders building interactive web applications.
- Completion of Learn HTML and Learn JavaScript (recommended prerequisites).
- Basic JavaScript proficiency (understanding of variables, functions, and program flow).
- No special hardware or paid software required; exercises run in the course environment.
Final Verdict
React 101 is a practical, well‑received introduction that emphasizes hands‑on projects and interactive, AI‑assisted feedback, making it a good low‑risk option for developers who want to add React to their toolkit quickly.
Choose this course if you want applied experience building component‑based interfaces and a straightforward path from basics to working apps; the platform’s paid tier adds a certificate and extra features for learners who need formal proof or extended support. If your goal is advanced state management or large‑scale architecture, treat this as a solid foundation and plan to continue with more specialized, in‑depth courses afterward.
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