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Gathering detailed insights and metrics for p-reduce

p-reduce - 3.0.0 | npmpackage.info

p-reduce

Reduce a list of values using promises into a promise for a value

3.0.0

MIT

JavaScript

4.2

Installations

npm install p-reduce

Developer Guide

BETA

Typescript

No

Module System

ESM

Min. Node Version

>=12

Node Version

15.12.0

NPM Version

6.14.10 Score

99.7

Supply Chain

Quality

75.3

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

0

Total

4

Closed

1

Merged

3

Issues

Open

1

Total

2

Closed

1

Releases

v3.0.0

Updated on Apr 08, 2021

v2.1.0

Updated on Apr 04, 2019

v2.0.0

Updated on Mar 12, 2019

View All 3 releases

Languages

JavaScript

TypeScript

JavaScript (64.48%)

TypeScript (35.52%)

Developer

sindresorhus

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

MIT License

70 Stars

13 Commits

7 Forks

5 Watchers

1 Branches

3 Contributors

Updated on May 14, 2025

Sponsor this package

https://github.com/sponsors/sindresorhus

Maintainers

View All 3 Contributors

Package Meta Information

Latest Version

3.0.0

Package Id

p-reduce@3.0.0

Size

2.52 kB

NPM Version

6.14.10

Node Version

15.12.0

Published on

Apr 08, 2021

Total Downloads

Cumulative downloads

Total Downloads

NaN

Last Day

NaN

Compared to previous day

Last Week

NaN

Compared to previous week

Last Month

NaN

Compared to previous month

Last Year

NaN

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

ava delay tsd xo

p-reduce

Reduce a list of values using promises into a promise for a value

Useful when you need to calculate some accumulated value based on async resources.

Install

$ npm install p-reduce

Usage

1import pReduce from 'p-reduce';
2import humanInfo from 'human-info'; // Not a real module
3
4const names = [
5	getUser('sindresorhus').then(info => info.name),
6	'Addy Osmani',
7	'Pascal Hartig',
8	'Stephen Sawchuk'
9];
10
11const totalAge = await pReduce(names, async (total, name) => {
12	const info = await humanInfo(name);
13	return total + info.age;
14}, 0);
15
16console.log(totalAge);
17//=> 125

API

pReduce(input, reducer, initialValue?)

Returns a Promise that is fulfilled when all promises in input and ones returned from reducer are fulfilled, or rejects if any of the promises reject. The fulfilled value is the result of the reduction.

input

Type: Iterable<Promise|any>

Iterated over serially in the reducer function.

reducer(previousValue, currentValue, index)

Type: Function

Expected to return a value. If a Promise is returned, it's awaited before continuing with the next iteration.

initialValue

Type: unknown

Value to use as previousValue in the first reducer invocation.

p-each-series - Iterate over promises serially
p-map-series - Map over promises serially
p-map - Map over promises concurrently
More…

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Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

0

SAST

Determines if the project uses static code analysis.

Score

4.2

/10

Last Scanned on 2025-07-07

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

Other packages similar to p-reduce

Other packages similar to p-reduce

p-reduce

Installations

Developer Guide

No

ESM

>=12

15.12.0

6.14.10

Score

Pull Requests

0

4

1

3

Issues

1

2

1

Releases

Languages

Developer

sindresorhus

Download Statistics

GitHub Statistics

Sponsor this package

Maintainers

Package Meta Information

Total Downloads

NaN

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

p-reduce

Install

Usage

API

pReduce(input, reducer, initialValue?)

input

reducer(previousValue, currentValue, index)

initialValue

Related

10

10

10

10

10

2

0

0

0

0

0

0

0

4.2

/10