Immutable Data Collections

Check the immutability of TypeScript types

PropType validators that work with Immutable.js.

redux-immutable is used to create an equivalent function of Redux combineReducers that works with Immutable.js state.

a date and time library for javascript

A bunch of reactive utility types and functions, for building primitives with Solid.js

Modify deep object properties without modifying the original object (immutability). Works great with React and Redux.

Immutable JSON patch with support for reverting operations

A JavaScript library for efficient immutable updates

Immutability helpers with fast reads and acceptable writes

Immutable ArrayBuffer (the shim!)

React PureComponent implementation embracing Immutable.js

Serialize unserializable data and parse it back.

Internationalized calendar, date, and time manipulation utilities

Immutable data structures for JavaScript which are backwards-compatible with normal JS Arrays and Objects.

Chrome Dev Tools formatter for the Immutable JS library

React JSON Viewer Component, Extracted from redux-devtools

Immutable finite list objects with constant-time equality testing (===) and no memory leaks

Immutable version of dot-prop with some extensions

btree-core is a high-performance B+ tree implementation designed for modern JavaScript applications. It provides efficient ordered data structures, predictable performance characteristics, and a clean, developer-friendly API.