crystalize.js

Crystalize.js is an advanced state management library that reimagines traditional reducers with enhanced capabilities like undo/redo and time-travel functionality. It introduces a unique metaphor of "crystals" (accumulated state) and "shards" (individual data elements) to provide more control over state aggregation and history navigation.

Key Features:

• Enhanced State Management: Acts like a reducer but maintains the full history of state changes (shards) while allowing selective aggregation into crystals.
• Time-Travel Capabilities: Enables navigation through state history with methods like .leave() (undo/redo) and .focus() (target specific states).
• Selective Data Handling:
  • .with() adds new shards
  • .take(N) retrieves the final crystal, N most recent shards, and the base crystal (aggregate of older shards)
  • .without() filters out specific shards
• Customizable Initialization: Supports sorting, mapping, timestamping, and retention limits during setup.

Target Audience:

Developers who need:

• More control over state history than traditional reducers provide
• Built-in undo/redo functionality
• Time-based state analysis capabilities
• Flexible state aggregation options

Framework Support:

While not explicitly mentioned, the library appears framework-agnostic and could be used with any JavaScript framework or vanilla JS.

Unique Concepts:

• Crystals: The accumulated state (equivalent to traditional reducer state)
• Shards: Individual data elements that contribute to the crystal
• Base Crystal: Aggregate of shards not included in the most recent .take() operation

The library offers a more granular approach to state management compared to traditional solutions like Redux, with built-in tools for historical state navigation and selective data aggregation.