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Tutur33
76 lines
2.0 KiB
Markdown
76 lines
2.0 KiB
Markdown
# p-all [](https://travis-ci.org/sindresorhus/p-all)
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> Run promise-returning & async functions concurrently with optional limited concurrency
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Similar to `Promise.all()`, but accepts functions instead of promises directly so you can limit the concurrency.
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If you're doing the same work in each function, use [`p-map`](https://github.com/sindresorhus/p-map) instead.
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See [`p-series`](https://github.com/sindresorhus/p-series) for a serial counterpart.
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## Install
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```
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$ npm install p-all
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```
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## Usage
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```js
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const pAll = require('p-all');
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const got = require('got');
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(async () => {
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const actions = [
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() => got('https://sindresorhus.com'),
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() => got('https://ava.li'),
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() => checkSomething(),
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() => doSomethingElse()
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];
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console.log(await pAll(actions, {concurrency: 2}));
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})();
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```
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## API
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### pAll(tasks, [options])
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Returns a `Promise` that is fulfilled when all promises returned from calling the functions in `tasks` are fulfilled, or rejects if any of the promises reject. The fulfilled value is an `Array` of the fulfilled values in `tasks` order.
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#### tasks
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Type: `Iterable<Function>`
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Iterable with promise-returning/async functions.
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#### options
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Type: `Object`
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##### concurrency
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Type: `number`<br>
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Default: `Infinity`<br>
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Minimum: `1`
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Number of concurrent pending promises.
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## Related
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- [p-map](https://github.com/sindresorhus/p-map) - Map over promises concurrently
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- [p-series](https://github.com/sindresorhus/p-series) - Run promise-returning & async functions in series
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- [p-props](https://github.com/sindresorhus/p-props) - Like `Promise.all()` but for `Map` and `Object`
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- [p-queue](https://github.com/sindresorhus/p-queue) - Promise queue with concurrency control
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- [p-limit](https://github.com/sindresorhus/p-limit) - Run multiple promise-returning & async functions with limited concurrency
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- [More…](https://github.com/sindresorhus/promise-fun)
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## License
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MIT © [Sindre Sorhus](https://sindresorhus.com)
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