https://github.com/jpwilliams/waitgroup-deno

A tiny version of Golang's WaitGroup for Deno with promises and zero dependencies.
https://github.com/jpwilliams/waitgroup-deno

Last synced: 22 days ago
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A tiny version of Golang's WaitGroup for Deno with promises and zero dependencies.

• Host: GitHub
• URL: https://github.com/jpwilliams/waitgroup-deno
• Owner: jpwilliams
• Created: 2020-06-18T18:37:46.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-06-18T21:38:10.000Z (over 4 years ago)
• Last Synced: 2024-05-02T05:50:09.292Z (6 months ago)
• Language: TypeScript
• Size: 5.86 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# waitgroup

A tiny version of Golang's [WaitGroup](https://golang.org/pkg/sync/#WaitGroup) for Deno with promises and zero dependencies outside of `std`.

```ts

import { WaitGroup } from "https://deno.land/x/waitgroup/mod.ts";

const wg = new WaitGroup();

const urls = [

  "http://www.golang.org/",

  "http://www.google.com/",

  "http://www.somestupidname.com/",

];

urls.forEach((url) => {

  // Increment the WaitGroup counter

  wg.add(1);

  // Fetch the URL

  fetch(url).then(() => {

    // Decrement the counter when the GET is complete

    wg.done();

  });

});

// Wait for all HTTP fetches to complete

await wg.wait();

```

For most applications, using built-ins like `Promise.all` will work perfectly, but sometimes this can be a really nice abstraction if the promises you have to keep track of are pretty spread out.

See [jpwilliams/waitgroup](https://github.com/jpwilliams/waitgroup) for a Node.js version.