built_collection
Immutable Dart collections using the builder pattern for safe, comparable, and hashable data structures.
What is built_collection?
Built Collection is a Dart library that provides immutable collections (List, Set, Map, Multimap) using the builder pattern. It solves the problem of safely sharing collections without defensive copying by ensuring collections are immutable, comparable, and hashable. It integrates seamlessly with Dart's core SDK collections while offering enhanced safety and performance.
Dart developers building applications that benefit from immutable data structures, such as state management in Flutter apps, functional programming paradigms, or any system requiring predictable, thread-safe data handling.
Developers choose Built Collection for its deep equality and hashing out-of-the-box, copy-on-write optimizations that avoid unnecessary copying, and its strict immutability guarantees, which reduce bugs and improve code clarity compared to mutable SDK collections.
Overview
Immutable Dart collections via the builder pattern.
Use Cases
Best For
- Implementing immutable state in Flutter applications
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