proposal-record-tuple
proposal-decorator-metadata | proposal-record-tuple | |
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4 | 73 | |
123 | 2,428 | |
6.5% | 0.7% | |
4.3 | 2.7 | |
4 months ago | 5 months ago | |
HTML | HTML | |
MIT License | - |
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proposal-decorator-metadata
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ECMAScript Decorators. The Ones That are Real
Indeed, numerous proposals and extensions are being considered to enhance the decorators specification further. Some of these proposals like the Decorator Metadata, are already under consideration even though the core decorator specification has not yet been standardized. This underscores the idea that decorators have a promising future in the specification and we can hope to see them become a part of the standard in the near future.
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Updates from the 96th TC39 meeting
Decorator Metadata: Extend the Decorators proposal by adding the ability for decorators to associate metadata with the value being decorated.
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TC39 Proposal: Type Annotations
https://github.com/tc39/proposal-decorator-metadata is where we'd probably need to begin to store this information. It's still need a transpiler to generate the necessary decorators. Decorators are still in progress (but kind of seemingly shaping up these days).
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Updates from the 89th TC39 meeting
Decorator metadata: Decorators can associate metadata with the value that is being decorated. (P.S: The repo shall be updated with content.)
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?
proposal-decorators - Decorators for ES6 classes
zod - TypeScript-first schema validation with static type inference
proposal-type-annotations - ECMAScript proposal for type syntax that is erased - Stage 1
Immer - Create the next immutable state by mutating the current one
proposal-intl-zoneddatetimeformat - Intl Format for Temporal.ZonedDateTime
typescript-eslint - :sparkles: Monorepo for all the tooling which enables ESLint to support TypeScript
proposal-regexp-v-flag - UTS18 set notation in regular expressions
typescript-is
proposal-class-method-parameter-decorators - Decorators for ECMAScript class method and constructor parameters
TypeScript - TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
proposals - Tracking ECMAScript Proposals
ts-node - TypeScript execution and REPL for node.js