proposal-decorators
proposal-decorator-metadata | proposal-decorators | |
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4 | 64 | |
123 | 2,649 | |
6.5% | 0.6% | |
4.3 | 4.2 | |
4 months ago | 2 months ago | |
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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-decorators
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Making Web Component properties behave closer to the platform
Because many rules are common to many attributes (the coerceType operation is defined by WebIDL, or using similar rules, and the HTML specification defines a handful of microsyntaxes for the parseValue and stringifyValue operations), those could be packaged up in a helper library. And with decorators coming to ECMAScript (and already available in TypeScript), those could be greatly simplified:
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The case for using decorators in your codebase
Decorators are currently not a part of the standard JavaScript language. They are still being discussed in tc39 and have reached proposal stage 3. This means the spec has more or less stabilized and we can use them but they would be transplied before being run in the browser. This would be done via babel or tsc for most users
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JavaScript Naming Conventions are Important
JavaScript was created a long time ago, and at the time of its inception, the authors decided not to use affirmative prefixes for boolean names. Now, they do their best by continuing to follow their convention, even if it goes against the community's opinion. Even if the authors wanted to introduce new naming conventions in the specification, they could not do it, at least not coherently. Old code cannot be renamed because JavaScript must remain backward-compatible. And starting to write new code using new approaches is not a great idea either, as there would be two ways to do the same thing, which is also undesirable.
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ECMAScript Decorators. The Ones That are Real
2016-07 – Stage 2. After the decorators proposal reached stage 2, its API began to undergo significant changes. Furthermore, at one point the proposal was referred to as "ESnext class features for JavaScript." During its development, there were numerous ideas about how decorators could be structured. To get a comprehensive view of the entire history of changes, I recommend reviewing the commits in the proposal's repository. Here is an example of what the decorators API used to look like:
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Strawberry - Zero-Dependency, Build-Free JavaScript Framework
The example you've given isn't valid JavaScript, JS doesn't have decorators. (Although there is a stage 3 tc39 for it, afaik no browser has implemented it)
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Updates from the 96th TC39 meeting
There was a decorators issue brought up in the meeting (issue 508) and decorators metadata, as noted in the article, is now at stage 3. So there's still active work being done on decorators. If I had to guess, I'd say they'd be a likely candidate for ES2024.
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The Lightweight Alternative to GraphQL, Resolvers Instead of Endpoints
As per the proposal, decorators can be used with Classes and their elements such as fields, methods, and accessors. To leverage this feature, we need to ensure that our resolvers provider is an instance of a Class. Therefore, we will modify the code in src/api/users/users-resolvers.js to the following:
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Using modern decorators in TypeScript
The modern version of decorators, which will be officially rolled out in TypeScript 5.0, no longer requires a compiler flag and follows the official ECMAScript Stage-3 proposal. Alongside a stable implementation that follows ECMAScript standards, decorators now work seamlessly with the TypeScript type system, enabling more enhanced functionality than the original version.
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What should I do after react js
100% this. Going in depth of libraries will make you so much better developer than learning newest and coolest frameworks in JS ecosystem. Learn to create your own React, Promises, or anything you like in JS. It will give you immense perspective about these libraries. Once you start understanding them you will feel like they are not that complex and you can do it too. Go read TC39 proposals and issues people point out in them. You will see how JS is borrowing features from other languages.
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Announcing TypeScript 5.0
The actual proposal gives the "@reactive" decorator as the first example, which just so happens is the only decorator that I use in my library with TypeScript's legacy decorator option. Was so happy to see they recognize this use case! https://github.com/tc39/proposal-decorators
What are some alternatives?
proposal-record-tuple - ECMAScript proposal for the Record and Tuple value types. | Stage 2: it will change!
openapi-typescript - Generate TypeScript types from OpenAPI 3 specs
proposal-type-annotations - ECMAScript proposal for type syntax that is erased - Stage 1
proposals - Tracking ECMAScript Proposals
proposal-intl-zoneddatetimeformat - Intl Format for Temporal.ZonedDateTime
TypeORM - ORM for TypeScript and JavaScript. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, SAP Hana, WebSQL databases. Works in NodeJS, Browser, Ionic, Cordova and Electron platforms.
proposal-regexp-v-flag - UTS18 set notation in regular expressions
remult - Full-stack CRUD, simplified, with SSOT TypeScript entities
proposal-class-method-parameter-decorators - Decorators for ECMAScript class method and constructor parameters
arktype - TypeScript's 1:1 validator, optimized from editor to runtime
reflex-metadata-SCKS
lit-element - LEGACY REPO. This repository is for maintenance of the legacy LitElement library. The LitElement base class is now part of the Lit library, which is developed in the lit monorepo.