immer

Immer

Create the next immutable state tree by simply modifying the current tree

Winner of the "Breakthrough of the year" React open source award and "Most impactful contribution" JavaScript open source award in 2019

Contribute using one-click online setup

You can use Gitpod (a free online VSCode like IDE) for contributing online. With a single click it will launch a workspace and automatically:

• clone the immer repo.
• install the dependencies.
• run yarn run start.

so that you can start coding straight away.

Documentation

The documentation of this package is hosted at https://immerjs.github.io/immer/

Support

Did Immer make a difference to your project? Join the open collective at https://opencollective.com/immer!

Release notes

https://github.com/immerjs/immer/releases

Similar packages

Other packages similar to immer

immutable

Immutable.js is a library by Facebook that provides persistent immutable data structures. Unlike Immer, which allows you to write mutable code that gets converted to immutable updates, Immutable.js requires you to use specific methods to update data structures. It offers a wide range of data structures like List, Map, Set, etc.

mori

Mori is a library that brings Clojure's persistent data structures to JavaScript. It is similar to Immutable.js in that it provides a variety of immutable data structures and functional programming utilities. Mori's API is quite different from JavaScript's native arrays and objects, which can have a steeper learning curve compared to Immer.

seamless-immutable

Seamless-immutable is a library that provides immutability for your data structures without drastically changing the syntax of standard JavaScript objects and arrays. It is less powerful than Immer in terms of handling complex updates and nested structures but offers a simpler and more familiar API for those who prefer to work with plain JavaScript objects.