Immer
ramda
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Immer | ramda | |
---|---|---|
141 | 80 | |
26,898 | 23,567 | |
0.8% | 0.3% | |
7.2 | 6.6 | |
13 days ago | 19 days ago | |
JavaScript | JavaScript | |
MIT License | MIT License |
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Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Immer
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Immer VS mutative - a user suggested alternative
2 projects | 25 Jan 2024
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Show HN: Cami.js – A No Build, Web Component Based Reactive Framework
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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
- Why do we need modules at all?
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Making Sense of React Server Components
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/
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How We Fixed Performance With JS Object Variable Mutation
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?
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The sword refers to immer, the faster and stronger immutable data js tool limu stable version released!
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.
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Ramda: A practical functional library for JavaScript programmers
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.
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Why my variable is being mutated if I make any changes to my data ?
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
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Is there a better way to do read-only types
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/)
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5 React Libraries to Level Up your Projects in 2023
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.
ramda
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Tacit Programming
JavaScript is great for point-free programming! Make sure you check out Ramda.js https://ramdajs.com/
It’s fun in the sense that solving a puzzle is fun, but I avoid it for anything I need to maintain long-term.
But it’s good practice for understanding combinators which is useful for some kinds of problems.
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Pipeline-Oriented Programming [video]
This is very cool. I remember I got sucked into things like Ramda going down this functional programming rabbit hole :-)
https://ramdajs.com/
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Level up your Typescript game, functionally - Part 2
To create our pipeline, I'm going to use the pipe function from the NodeJS ramda library instead of building my own.
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Level up your Typescript game, functionally - Part 3
Other libraries to check out are pratica and ramda
- Ramda: A practical functional library for JavaScript programmers
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FP and JavaScript/TypeScript
I recently took ownership of the new types/ramda repo. This repo is re-exported by @types/ramda and is the first step to bringing type definitions for ramda in-house. We're already hard at work correcting major issues, adding full currying support, and general bug fixes
- [AskJS] Auto-Generated Documentation from JSDoc comments, nice modern themes?
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When to use currying in JavaScript
I'm going to be honest. You probably don't need to use currying in JavaScript. In fact, trying to fit it in your code is going to do more harm than good, unless it's just for fun. Currying only becomes useful when you fully embrace functional programming, which, in JavaScript, means using a library like Ramda instead of the standard built-in functions.
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No Lodash
Lodash gets so many things wrong I’d rather not see it in most projects. I appreciate a good utility library for JS projects but my go-to choice has to be Ramda[1]. Every function it exports is curried and works great with pipe which enables me to write highly reusable and composable functions in pointfree notation. I have never been as productive with lodash, and I find the functional style easier to read
[1] https://ramdajs.com/
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Snap.js - A competitor to Lodash
Do note though that ramda is different from rambda. 👍 (Granted they are very similar!)
What are some alternatives?
immutability-helper - mutate a copy of data without changing the original source
lodash - A modern JavaScript utility library delivering modularity, performance, & extras.
immutable-js - Immutable persistent data collections for Javascript which increase efficiency and simplicity.
RxJS
redux-toolkit - The official, opinionated, batteries-included toolset for efficient Redux development
Rambda - Faster and smaller alternative to Ramda
Recoil - Recoil is an experimental state management library for React apps. It provides several capabilities that are difficult to achieve with React alone, while being compatible with the newest features of React.
react-query - 🤖 Powerful asynchronous state management, server-state utilities and data fetching for TS/JS, React, Solid, Svelte and Vue. [Moved to: https://github.com/TanStack/query]
fp-ts - Functional programming in TypeScript
valtio - 💊 Valtio makes proxy-state simple for React and Vanilla
lazy.js - Like Underscore, but lazier