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React 19

Staff Engineer: React Compiler & AST

React Compiler internals (HIR/SSA), custom ESLint rules, SWC/Babel AST plugins, jscodeshift codemods, and WebAssembly sandboxes

5 lessons•~120 min•+150 XP
Topic Progress
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Remaining to learn: 5

Lessons in Module (5)

5 lessons in order
01

React Compiler Internals: SSA Form, High-Level Intermediate Representation (HIR), and Memoization

25 min•+30 XP
02

Developing Custom ESLint Rules for React 19: AST Parsing with @typescript-eslint/parser and Autofixes

25 min•+30 XP
03

Building SWC (Rust) and Babel Plugins: JSX Transformation, Telemetry Injection, and Import Optimization

25 min•+30 XP
04

Automated Refactoring with jscodeshift: Migrating 100,000+ Lines of Legacy Components to React 19 Patterns

25 min•+30 XP
05

In-Browser WebAssembly Sandboxes (QuickJS) and Profiling V8 Hidden Class Deoptimizations

20 min•+30 XP
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