React from First Principles: A Complete Free Course

About this path

This learning path takes you through the ReactJS Full Course playlist by Coder Army. Instead of memorizing patterns, you'll build a deep understanding of React's core ideas. Starting with a blank HTML file and CDN links, you'll explore the problems React solves, then gradually master JSX, components, props, state, hooks, performance, and forms. By the end, you'll be able to think in React and build complex, predictable web apps with confidence.

What you will learn

• Understand the core problems React solves and the declarative mindset
• Explain JSX, Babel, components, and props from first principles
• Set up a modern React development environment with Vite
• Use useState and useEffect hooks correctly and understand their internals
• Describe React's reconciliation, Fiber, and diffing algorithms
• Apply performance optimizations with React.memo, useMemo, and useCallback
• Use useRef for DOM access and mutable values
• Build type-safe forms with React Hook Form and Zod
• Manage global state with Context API and avoid prop drilling

Who this is for

Beginners who want a structured free introduction before deeper practice.

Curriculum