colinhacks/zod
5 articles
Prerequisites
- ›Basic TypeScript knowledge
- ›Familiarity with npm packages and module resolution
- ›Understanding of monorepo concepts
01
Architecture and Navigation Guide
A high-level tour of Zod's monorepo structure and three-layer architecture
02
Navigating the Zod Codebase: Architecture, Layers, and Entry Points
A high-level tour of Zod's three-layer architecture — core kernel, Classic and Mini API surfaces, and thin entry-point re-exports.
03
The $constructor Pattern: How Zod Builds Types Without Classes
Zod eschews ES6 classes in favor of a custom $constructor factory that enables trait-based composition — the foundation of every schema.
04
Inside the Validation Pipeline: Parsing, Checks, and Error Collection
Trace a .parse() call from entry through _zod.run and _zod.parse, covering the ParsePayload pattern, check system, and async detection.
05
Performance Engineering: JIT Compilation, Lazy Initialization, and the bag Pattern
How Zod achieves fast validation through JIT-compiled object parsing, lazy initialization, and the bag metadata pattern.