Claude Code for React Developers

Use Claude Code as a collaborative partner across the full range of day-to-day React development work. This hands-on course covers navigating the CLI, exploring unfamiliar codebases, and applying a structured brainstorm-design-plan-execute workflow to take ideas all the way to working code, testing, debugging, upgrading dependencies, and refactoring with confidence.

What You'll Learn

By the end of this course, you will be able to:

• Navigate the Claude Code CLI and manage sessions, history, and context effectively
• Map the architecture and data flow of an unfamiliar React codebase using Claude
• Brainstorm feature ideas, resolve design decisions, and produce written specs collaboratively with Claude
• Generate codebase-aware implementation plans and execute them through to working code
• Generate comprehensive tests for existing code and fix implementation gaps exposed by failing tests
• Debug user-reported issues collaboratively using Claude Code
• Upgrade major dependencies safely using tests as a verification baseline
• Refactor inconsistent code with Claude while preserving existing behavior

Requirements

• Solid working knowledge of React and TypeScript
• Familiarity with the terminal and command-line workflows
• Basic understanding of Git and version control

Audience

• React Developers and Frontend Engineers
• Full-Stack Developers working in React codebases
• Technical Leads responsible for maintaining or modernizing React applications

Topics

Getting Started with Claude Code

• Launching and Navigating Claude Code from the Terminal
• Managing Sessions, History, and Context
• Working Efficiently with Keyboard Shortcuts, Shell Passthrough, and File References

Exploring an Unfamiliar React Codebase

• Using Claude to Map Application Architecture and Data Flow
• Identifying Key Components, Dependencies, and Patterns
• Building a Working Mental Model of an Unfamiliar Codebase Quickly

Brainstorm, Design, and Plan

• Brainstorming Feature Ideas and Resolving Design Decisions with Claude
• Producing a Written Spec from a Brainstorming Session
• Generating a Codebase-Aware Implementation Plan from an Approved Design

Executing an Implementation Plan

• Executing an Implementation Plan with Claude Code
• Evaluating Results and Iterating on the Output

Test Generation and Test-Driven Fixes

• Generating Comprehensive Tests for Existing Code
• Identifying and Fixing Implementation Gaps Exposed by Failing Tests

Debugging with Claude Code

• Diagnosing and Debugging User-Reported Issues Collaboratively
• Applying the Brainstorm-Design-Plan-Execute Workflow to Debugging

Dependency Upgrades

• Upgrading Major Dependencies Safely with Claude Code
• Using Tests as a Verification Baseline Throughout the Upgrade Process

Refactoring

• Refactoring Inconsistent Code While Preserving Existing Behavior
• Applying Structured Workflows to Maintenance and Improvement Tasks