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p-all

Run promise-returning & async functions concurrently with optional limited concurrency


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What is p-all?

The p-all package is a utility module for running multiple promise-returning & async functions with limited concurrency, aggregating the results. It is useful for controlling the execution of a large number of asynchronous operations to ensure that system resources are managed properly.

What are p-all's main functionalities?

Running multiple promises with limited concurrency

This feature allows you to run multiple promises with a specified concurrency limit. In the code sample, three tasks are executed with a concurrency limit of 2, meaning only two promises will be running at the same time.

const pAll = require('p-all');

const tasks = [
  () => Promise.resolve('Task 1'),
  () => Promise.resolve('Task 2'),
  () => Promise.resolve('Task 3')
];

pAll(tasks, { concurrency: 2 }).then(results => {
  console.log(results); // ['Task 1', 'Task 2', 'Task 3']
});

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Package last updated on 22 Apr 2023

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