proposal-decorators
tsyringe
proposal-decorators | tsyringe | |
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64 | 23 | |
2,649 | 4,786 | |
0.6% | 1.3% | |
4.2 | 2.9 | |
2 months ago | 4 months ago | |
TypeScript | ||
- | MIT License |
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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
tsyringe
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SOLID explicado com TypeScript
Alguns frameworks trabalham desta forma por padrão, como é o caso do Angular, quando este não é o padrão do framework que utilizamos podemos usar alguma biblioteca, como a Inversify ou tsyringe da Microsoft.
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Approach to applying DI container to an existing codebase?
We are writing a backend application that handles a data stream and provides REST and GraphQL endpoints to query and manage these data. We are using TypeScript with Express.js and TSyringe for our DI container.
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Announcing TypeScript 5.0 Beta
This is exciting but also make be a bit nervous as my projects make extensive use of https://github.com/microsoft/tsyringe and the decorator changes are not going to play nice.
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Typesafe, (almost) Zero Cost Dependency Injection in TypeScript
tsyringe
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Has anyone successfully created a Dependency Injection using typescript decorators?
If you don’t want to tie yourself to a full web framework like Nest, there are a few DI-only frameworks that work with decorators, like TypeDI, TSyringe, or Typed Inject.
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create generic BaseService working with TypeORM
In next post I will show you how to using with other DI package like awilix , tsyringe, etc...
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Dependency injection without the decorators
It is written in Typescript, it is modeled similarly to the Microsoft tsyringe (which I was using previously).
- Algum dev NodeJS (express) ai pra me dar umas dica?
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Dependency Injection in JavaScript: Write Testable Code Easily
For existing projects, or if you don't want the weight of an opinionated framework like Nest, libraries like TypeDI and TSyringe can help.
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Dependency inversion principle in Typescript
I personally still always opt for that pattern to start with and refactoring to some sort of Reader monad as the application grows. Others may prefer instead to go the route of decorators and reflection with tsyringe.
What are some alternatives?
openapi-typescript - Generate TypeScript types from OpenAPI 3 specs
InversifyJS - A powerful and lightweight inversion of control container for JavaScript & Node.js apps powered by TypeScript.
proposals - Tracking ECMAScript Proposals
typedi - Simple yet powerful dependency injection tool for JavaScript and TypeScript.
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.
Nest - A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀
remult - Full-stack CRUD, simplified, with SSOT TypeScript entities
awilix - Extremely powerful Inversion of Control (IoC) container for Node.JS
arktype - TypeScript's 1:1 validator, optimized from editor to runtime
TypeScript - TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
proposal-decorator-metadata
typed-inject - Type safe dependency injection for TypeScript