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async-each-series
Advanced tools
The async-each-series npm package allows you to iterate over an array of items and perform asynchronous operations on each item in series, meaning one after the other. This is useful when you need to ensure that each asynchronous operation completes before the next one starts.
Iterate over an array with asynchronous operations in series
This feature allows you to process each item in an array with an asynchronous operation, ensuring that each operation completes before the next one starts. The provided code sample demonstrates how to use async-each-series to process an array of numbers with a simulated asynchronous operation using setTimeout.
const eachSeries = require('async-each-series');
const items = [1, 2, 3, 4, 5];
function asyncOperation(item, callback) {
setTimeout(() => {
console.log('Processing item:', item);
callback();
}, 1000);
}
eachSeries(items, asyncOperation, (err) => {
if (err) {
console.error('Error:', err);
} else {
console.log('All items have been processed.');
}
});
The async package provides a wide range of asynchronous utilities, including the eachSeries function, which offers similar functionality to async-each-series. It is a more comprehensive library with additional features for managing asynchronous control flow.
Bluebird is a fully-featured Promise library that includes utility functions for working with asynchronous operations. The Bluebird.each method can be used to iterate over an array with asynchronous operations in series, similar to async-each-series. Bluebird also offers advanced features like cancellation and progress tracking.
The p-each-series package is a lightweight alternative that provides similar functionality to async-each-series. It allows you to iterate over an array of items and perform asynchronous operations on each item in series using Promises.
Apply an async function to each Array element in series
Install with npm:
$ npm install async-each-series
Install with component(1):
$ component install jb55/async-each-series
var each = require('async-each-series');
each(['foo','bar','baz'], function(el, next) {
setTimeout(function () {
console.log(el);
next();
}, Math.random() * 5000);
}, function (err) {
console.log('finished');
});
//=> foo
//=> bar
//=> baz
//=> finished
The MIT License (MIT)
Copyright (c) 2014 William Casarin
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
FAQs
Apply an async function to each Array element in series.
The npm package async-each-series receives a total of 768,995 weekly downloads. As such, async-each-series popularity was classified as popular.
We found that async-each-series demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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