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it-parallel
Advanced tools
Process incoming async(iterable) functions in parallel
Takes an (async) iterable that emits promise-returning functions, invokes them in parallel up to the concurrency limit and emits the results as they become available, optionally in the same order as the input
import parallel from 'it-parallel'
import all from 'it-all'
import delay from 'delay'
// This can also be an iterator, async iterator, generator, etc
const input = [
async () => {
console.info('start 1')
await delay(500)
console.info('end 1')
return 1
},
async () => {
console.info('start 2')
await delay(200)
console.info('end 2')
return 2
},
async () => {
console.info('start 3')
await delay(100)
console.info('end 3')
return 3
}
]
const result = await all(parallel(input, {
concurrency: 2
}))
// output:
// start 1
// start 2
// end 2
// start 3
// end 3
// end 1
console.info(result) // [2, 3, 1]
If order is important, pass ordered: true
as an option:
const result = await all(parallel(input, {
concurrency: 2,
ordered: true
}))
// output:
// start 1
// start 2
// end 2
// start 3
// end 3
// end 1
console.info(result) // [1, 2, 3]
$ npm i it-parallel
<script>
tagLoading this module through a script tag will make its exports available as ItParallel
in the global namespace.
<script src="https://unpkg.com/it-parallel/dist/index.min.js"></script>
Licensed under either of
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
FAQs
Process incoming async(iterable) functions in parallel
The npm package it-parallel receives a total of 26,094 weekly downloads. As such, it-parallel popularity was classified as popular.
We found that it-parallel demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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