immutable-js/immutable-js

Features

• Structural Sharing - Employs structural sharing to reuse unchanged nodes between versions of persistent data structures, minimizing memory overhead.
• Functional State Management - Provides a toolkit for managing application state using pure functions and immutable data structures.
• Immutable Data Structures - Provides a suite of immutable data structures that transform plain JavaScript objects and arrays into persistent collections.
• Application State Management - Provides a toolkit for application state management using persistent structures to ensure predictable updates in JavaScript.
• Data Manipulation Libraries - Provides a comprehensive toolkit for transforming, filtering, and querying structured data while maintaining immutability.
• Hash Array Mapped Tries - Implements Hash Array Mapped Tries to enable efficient updates of persistent collections through structural sharing.
• Deep Object Manipulations - Provides utilities for recursive property updates and structural modifications of deeply nested data structures.
• Path-Copying Persistence - Uses path-copying persistence to create new versions of data structures while preserving previous state.
• Persistent Application State - Maintains persistent application state using immutable collections to ensure predictable updates and prevent direct mutation.
• Persistent Data Structures - Implements persistent data structures that use structural sharing to efficiently preserve previous versions of state.
• Value-Based Equality Checking - Implements value-based equality checking to optimize rendering and change detection by comparing content instead of references.
• Lazy Sequence Processors - Ships a system for chaining data transformations that execute only when values are requested.
• Immutable Mutation Batching - Supports batch mutation processing using temporary mutable copies to optimize performance during multiple rapid updates.
• Lazy Iterators - Implements memory-efficient lazy iterators that defer data transformations until values are explicitly requested.
• Path-Based Data Access - Enables path-based data access to read and update values deep within nested data trees without manual traversal.
• Deep Equality Checks - Implements deep equality checks to determine if two collections are identical based on content rather than memory reference.
• Deep Equality Comparison - Provides utilities for deep equality comparison of nested data structures by value.
• Lazy Evaluation Patterns - Provides lazy sequence evaluation to defer map and filter computations until values are explicitly requested.
• State Management - Persistent data collections for JavaScript.
• Functional Programming - Library for creating and managing immutable data structures.
• State Management - Listed in the “State Management” section of the Awesome React awesome list.

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