# Strategy Pattern
Confidence: high
Last verified: 2026-05-22
Generation: human_only


## TL;DR

Encapsulates interchangeable algorithms, making them swappable at runtime. Replaces large if-else chains with polymorphism. Example: sorting strategies, payment methods.

## Core Explanation

Context (holds strategy), Strategy (interface), ConcreteStrategies. In functional languages, strategies are just functions — no class hierarchy needed. Key benefit: adding new strategies doesn't modify existing code (Open/Closed Principle).

## Further Reading

- [Design Patterns (Gang of Four)](undefined)