https://github.com/ekwoka/vite-plugin-using

Vite Plugin to transpile the using keyword
https://github.com/ekwoka/vite-plugin-using

Last synced: 27 days ago
JSON representation

Vite Plugin to transpile the using keyword

• Host: GitHub
• URL: https://github.com/ekwoka/vite-plugin-using
• Owner: ekwoka
• License: mit
• Created: 2023-08-28T18:03:36.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-03-31T13:33:54.000Z (9 months ago)
• Last Synced: 2024-05-02T01:12:42.627Z (8 months ago)
• Language: TypeScript
• Size: 92.8 KB
• Stars: 1
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# A quick and easy way to start using USING today!

> Note: This project is deprecated! The behavior is easily accessible inside of VITE using `esbuild.target: 'es2022' which will be a lot better than this dirty package anyway.

[](https://www.npmjs.com/package/vite-plugin-using)





[](https://bundlephobia.com/package/vite-plugin-using)



This plugin allows using the upcoming JS keyword `using` in your code today! It transpiles `using` and `await using` to `try/finally` blocks to get the same effect more easily!

## Installation

```bash

pnpm add vite-plugin-using

```

Add to your `vite.config.ts`

```ts

import ViteUsing from 'vite-plugin-using';

export default defineConfig({

  plugins: [ViteUsing()],

});

```

You will need to polyfill the new `@@dispose` and `@@asyncDispose` symbols as such somewhere in your runtime:

```ts

Symbol.dispose ??= Symbol('@@dispose');

Symbol.asyncDispose ??= Symbol('@@asyncDispose');

```

## Usage

Just start `using`!!

```ts

class disposable {

  constructor() {}

  [Symbol.dispose]() {

    console.log('disposing')

  }

  [Symbol.asyncDispose]() {

    console.log('async disposing')

  }

}

{

  using obj = new disposable();

  console.log('made one obj');

  await using obj2 = new disposable();

  console.log('made two obj');

  console.log(obj, obj2)

}

```

## Dang That's Cool!