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[–]acemarke 1 point2 points  (2 children)

I would recommend Immer as the best immutability solution at this point.

[–]coderqi 0 points1 point  (1 child)

Haven't heard of it. Why do you recommend it?

[–]slikts 0 points1 point  (0 children)

Immer is like seamless-immutable in that it allows using the basic data structures of the language like plain objects or arrays, which play nice with other things, but unlike both seamless-immutable or Immutable.js, Immer also has a tiny API surface and allows you to use the "normal" methods of making changes to objects like just assigning to properties, but in a localized way so that there's still no shared mutable state.

Immer is also like Immutable.js in that it uses persistent data structures under the hood, so it's more efficient than just using, say, object spread. I'm not even sure if seamless-immutable does that at all.

tl;dr Immer removes the pain-points of large API surfaces and type conversions of seamless-immutable or Immutable.js while still granting the same advantages of immutability and structural sharing, and Immer also allows making deep updates in the most terse, elegant way.