Immer VS immutability-helper

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It looks like it’s mutating, but both the reducers and update() uses immer* under the hood, so we still respect immutability under the hood.

Cami supports redux devtools so you can use that for time-travel debugging too!

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

I heard that immutability libraries like immer.js [0] help with this. Anyone go this way and had good success? Is this 'the way'?

[0]: https://immerjs.github.io/immer/

So, that's what we built, and we built it in the most obvious way — using JavaScript Proxy objects to track mutations and reflect those changes across Appsmith’s framework. Initially things looked good — it worked, aside from a few hacks to make some data types work with map and set, and we were following the example of other projects that had similar requirements. If it was good enough for them, it should be good enough for us, right?

But is immer really the ultimate answer? The performance problem of immer is more prominent in large arrays and deep-level object scenarios. See this issue description, many authors in the community began to try to make breakthroughs, and noticed that structura and mutative, I found that it is indeed many times faster than immer as they said, but it still fails to solve the problem of both fast speed and good development experience. I will analyze the two issues in detail below.

I like immer for this kind of thing: https://github.com/immerjs/immer

It gives you immutable updates without getting bogged down in FP abstractions.

I've always been a huge fan of immer for these case. For your code, it would simply turn into setGridData((prev) => produce(prev, draft => applyChanges(changes, draft)) but I recommend you go over their documentation to fully understand how it works

If you're trying to make things actually immutable, Object.freeze and deep copies can clutter things up pretty good, have you considered using something like immer? (https://immerjs.github.io/immer/)

If you want to set up from Context, Zustand is your best bet. It offers an extremely simple API that lets you create a store with values and functions. Then, you can access that store from anywhere in your application to read and write values. Reactivity included! If you want to store nested object data in your store, consider using Immer alongside Zustand to easily change nested state.

if you're feeling fancy, try out https://www.npmjs.com/package/immutability-helper

Here’s a lib that could help: https://github.com/kolodny/immutability-helper

https://reactjs.org/docs/introducing-jsx.html https://www.freecodecamp.org/news/what-the-heck-is-jsx-and-why-you-should-use-it-to-build-your-react-apps-1195cbd9dbc6/ https://egghead.io/learn/react/beginners/wtf-is-jsx https://danburzo.github.io/react-recipes/recipes/immutability.html https://reactkungfu.com/2015/08/pros-and-cons-of-using-immutability-with-react-js/ https://github.com/kolodny/immutability-helper https://www.dottedsquirrel.com/declartive-imperative/

I'm OK to use any of the libraries immutability-helper, immutable-js etc or ES6. I've tried and googled this for over 4 hours, and still cannot wrap my head around it. Would be extremely grateful for some help.

I doubt that’s true, check this out, it’s designed with your use case in mind.

This tutorial uses the create-react-app as the starting template. The react and react-dom dependencies are both version 17.0.2. The react-scripts is version 4.0.0. The yup library is the fourth dependency and it is version 0.32.9. The fifth and last dependency is immutability-helper, version 3.1.1.

Are you perplexed by the syntax of immutability-helper? Repulsed by immer.js's use of assignment? Alarmed by lodash's lack of type safety?

If you still insist using a deeply nested and quite complex object, I would advise you look at immutability-helper - https://github.com/kolodny/immutability-helper or similar immutable library.