limu
proposal-record-tuple
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limu | proposal-record-tuple | |
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8 | 73 | |
201 | 2,423 | |
8.5% | 0.9% | |
8.2 | 2.7 | |
about 2 months ago | 5 months ago | |
JavaScript | HTML | |
MIT License | - |
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limu
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Focusing on optimization, surpassing immer, limu finally reaches the top of immutable data performance
limu is designed for modern browsers. It only considers the operating environment that supports Proxy and uses the mechanism of shallow copy on read and mark update on write. This allows users to operate variable data like original data. During the operation, only proxy objects are generated for the read nodes and returned to the user. After reading, the parent and child nodes are directly connected with shallow clone nodes. The proxy object is hidden in the meta data of the node. , after the operation is completed, a new data with structural sharing characteristics is generated, and the meta data generated during the reading process is removed.
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Deep Cloning Objects in JavaScript, the Modern Way
for those recommending Immer, check out Mutative or Limu instead (much faster)
https://github.com/unadlib/mutative
https://github.com/tnfe/limu
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Limu, the fastest immutable data JavaScript lib was borned
Strongly recommend trying [limu](https://github.com/tnfe/limu),it is now the fastest immutable data js lib,and it is also production environment available.
//You can verify through the following tests, and you are also welcome to add more performance test cases
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The sword refers to immer, the faster and stronger immutable data js tool limu stable version released!
Welcome to understand and pay attention to limu, visit documentation and right-click to bring up the console, you can ** Real-time experience **limu api and immer api for comparison (limu and immer objects are bound globally).
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Limu, a Fast Immutable Lib
You are very welcome to submit your test to the benchmark directory of limu git repo
limu 🍋
proposal-record-tuple
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Union, intersection, difference, and more are coming to JavaScript Sets
relevant issue, which is at the crux of this problem: https://github.com/tc39/proposal-record-tuple/issues/387
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The Everything NPM Package
There are still so many basic things that aren't in the JS stdlib, though. A good example is Map - if you need to use a tuple of two values as a key, you're SOL because there's no way to customize key comparisons. Hopefully we'll get https://tc39.es/proposal-record-tuple/ eventually, but meanwhile languages ranging from C++ to Java to Python have had some sensible way to do this for over 20 years now.
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Deep Cloning Objects in JavaScript, the Modern Way
If you’re reaching for structuredClone, what you really want is native immutable Record and Tuple syntax, and the companion “deep path properties” syntax which allows for efficient and ergonomic immutable updates:
- https://github.com/tc39/proposal-record-tuple
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Cool language features that Rust is missing?
It will be called "record" in JavaScript which will swing the popularity back the other way I guess (currently a language proposal)
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Why doesn't TypeScript properly type Object.keys?
I suspect considering the strong desire to maintain consistency with JavaScript, we will eventually see something that when the Record proposal passes through tc39
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ES2023 features list!
I hope the Record and Tuple proposal makes it through
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ES2023 introduces new array copying methods to JavaScript
I mean, I'd love some real immutable/persistent data structures in JS by default, or even some Immer-like syntax sugar. Something like the record/tuple proposal would be awesome.
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What's new in ECMAScript 2023
This will become very useful once Records and Tuples are a thing, because it allows you to store object references in a record/tuple (which by definition can only contain primitives).
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[AskJS] Is JavaScript missing some built-in methods?
Record and tuple is at stage 2
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The huge potential of Kotlin/Wasm
Also, js has an ongoing immutable value data types proposal.
What are some alternatives?
mutative - Efficient immutable updates, 2-6x faster than naive handcrafted reducer, and more than 10x faster than Immer.
zod - TypeScript-first schema validation with static type inference
hel - A module federation SDK which is unrelated to tool chain for module consumer. 工具链无关的运行时模块联邦sdk.
Immer - Create the next immutable state by mutating the current one
typescript-eslint - :sparkles: Monorepo for all the tooling which enables ESLint to support TypeScript
concent - A reactive atomic state engine for React like.
typescript-is
structura.js - A very fast and lightweight Typescript library to create immutable states with a mutable syntax
TypeScript - TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
redux-connect - Provides decorator for resolving async props in react-router, extremely useful for handling server-side rendering in React
proposals - Tracking ECMAScript Proposals