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React class components on Scrimba

Quick answer: New React is hooks-first, but legacy code and interviews still mention class components. This free ~80-minute primer gets you comfortable with Component, this.state, lifecycle language, and reading older files—without abandoning modern React for day-to-day work.

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Last reviewed: March 2026.

About This Course​

A one-hour course to get you up to speed with class components in React

This Intermediate-level course covers 80 min of content. It is available for free — no subscription required.

  • Duration: 80 min
  • Level: Intermediate
  • Access: Free (no subscription required)

What Makes This Course Distinctive​

Most new Scrimba React content is hooks-first, but real codebases still contain class components. This free module exists so you can open an older repo without panic. You work through the mental model: class syntax, this binding, lifecycle methods, and how state updates differ from hooks mentally even when patterns overlap.

Junior devs fear classes because bootcamps skipped them; seniors sometimes forget details. The course is short on purpose so you can slot it between larger projects. Pair it with Learn React for modern patterns, then use this when you inherit enterprise UI. It will not teach concurrent features or server components; it keeps you employable when legacy sticks around.

Prerequisites​

Basic knowledge of HTML, CSS, and JavaScript is recommended before starting this course.

Who Is This Course For?​

Best for developers who know modern React with hooks but may touch older files, open source, or interview questions about classes. Free access makes it an easy add-on for career changers like Maria before a first job. Skip if you only write greenfield hooks code and have zero legacy exposure planned.

Part of These Learning Paths​

Choose This If​

  • You opened a repo and saw extends React.Component; you need a fast, structured refresher.
  • You have avoided classes because hooks tutorials skipped them; this course closes that gap without a paid subscription.
  • You want interview coverage for lifecycle vocabulary even while you write function components daily.

Practice & Learn More​

Start class components course for free (opens in a new tab)

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