# Advanced Types

> Advanced TypeScript types including generics, conditionals, and mapped types

- Skill: `diegosouzapw/advanced-types` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add diegosouzapw/advanced-types`
- Raw SKILL.md: https://api.skillmd.com/api/skills/diegosouzapw/advanced-types/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: diegosouzapw (https://skillmd.com/u/diegosouzapw)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/diegosouzapw/advanced-types

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# Advanced TypeScript Types Skill

## Overview
Master advanced TypeScript type features including generics, conditional types, mapped types, and utility types.

## Topics Covered

### Generics
- Generic functions
- Generic interfaces
- Generic classes
- Generic constraints
- Default type parameters

### Conditional Types
- Conditional type syntax
- Inferring within conditionals
- Distributive conditionals
- Type filtering
- Never in conditionals

### Mapped Types
- Basic mapped types
- Key remapping
- Modifiers (+/-)
- Template literal types
- Recursive types

### Utility Types
- Partial, Required, Readonly
- Pick, Omit, Record
- Extract, Exclude
- ReturnType, Parameters
- Awaited, NonNullable

### Advanced Patterns
- Type guards
- Branded types
- Opaque types
- Variadic tuple types
- Type-level programming

## Prerequisites
- TypeScript fundamentals
- Basic generics understanding

## Learning Outcomes
- Create complex generic types
- Use conditional types effectively
- Build custom utility types
- Apply type-level patterns