Update immutable objects as if they were mutable with copy-on-write
Extensible procedural text generation engine with dynamic, mutable state, indirection, randomizable & recursive variable expansions
a mutable state management library for javascript
Immer integration for nanostores, providing immutable state updates with mutable syntax
Immutable and mutable RGB color classes with HSV, ANSI, and named color support
Directives to enable moving or resizing a div element.
A TypeScript library that wraps mutable values and makes them immutable using proxies and cloning. This library allows you to work with classes designed with a mutable API while automatically maintaining immutability through copy-on-write semantics.
Immutable versions of normally mutable array methods
Async event emitter with priority queues, once-listeners, and a mutable mid-flight queue.
Like Immutable, but actually mutable with diffs and versions.
DOM synchronization for mutable models
Create / Load / Seed mutable webtorrents (BEP 46)
TypeScript library for mutable colour conversion and manipulation 🎨
A tiny wrapper that let's you use `reactjs useState hook` like a mutable object
Agent-driven knowledge base — immutable raw sources + mutable wiki + self-checking lint. MCP server, no LLM needed.
Versioned mutable references for Node.js applications
Mutable three.js scene-graph renderer + product-asset loader for TPI blade visualization (the reusable JS half of tpi-viz).
Check circular reference or mutable variable. Print its reference attribute chain.
Drop-in replacement for Next.js useSearchParams that returns a mutable URLSearchParams.
Set-like class using mutable arrays as keys
Tiny, mutable, double linked, iterable list.
A simple yet extensible mutable model library with attribute comparisons and change events.
random-access-storage provider via non-standard IDBMutableFile API
Mutable state enhancer library for React by @vue/reactivity