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promise-map-first

Get the value of the first promise in a series to resolve

1.0.0

MIT

JavaScript

265.00 B

631 3

Installations

npm install promise-map-first

Developer Guide

BETA

Typescript

No

Module System

CommonJS

Min. Node Version

>=4

Node Version

6.9.1

NPM Version

3.10.8 Score

67.9

Supply Chain

85.5

Quality

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

0

Total

0

Closed

0

Issues

Open

0

Total

0

Closed

0

Releases

Unable to fetch releases

Contributors

Unable to fetch Contributors

View all 1 contributors

Languages

JavaScript

JavaScript (100%)

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Developer

spacedoc

Download Statistics

Total Downloads

631

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

1 Stars

1 Commits

3 Watching

1 Branches

1 Contributors

Bundle Size

372.00 B

Minified

265.00 B

Minified + Gzipped

Bundlephobia

Maintainers

Package Meta Information

Latest Version

1.0.0

Package Id

promise-map-first@1.0.0

Size

3.26 kB

NPM Version

3.10.8

Node Version

6.9.1

Total Downloads

Cumulative downloads

Total Downloads

631

Last day

Compared to previous day

Last week

150%

Compared to previous week

Last month

Compared to previous month

Last year

15.5%

Compared to previous year

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

chai chai-as-promised mocha sinon sinon-chai

Versions

promise-map-first

Get the value of the first promise in a series to resolve

Runs a series of promises sequentially while iterating through a value, ignoring rejections, and returns the value of the first promise in the series to resolve.

Use this like an asynchronous for loop, where the condition is a Promise's resolve/reject mechanism.

Installation

1npm install promise-map-first

Usage

1const first = require('promise-map-first');
2const pify = require('pify');
3const readFile = pify(require('fs').readFile);
4
5const files = [
6  'one.jpg',
7  'two.txt', // <-- this file exists
8  'three.mov', // <-- this file also exists
9];
10
11first(files, file => readFile(file)).then(res => {
12  // res.index is 1
13  // res.value is the contents of two.txt
14});

API

first(input, fn)

Iterate over input by calling fn for each item in the series. The function should return a promise. Each promise is called sequentially. If a promise rejects, the next one is called. If a promise resolves, the value is returned, and no further functions are called.

input (Iterable): items to iterate through.
fn (Function): iterating function. Should return a promise. Takes these parameters:
- value: value of current item.
- index (Integer): index of current item.
- array (Iterable): collection being iterated through.

Returns a Promise which resolves as soon as a promise in the series resolves. The promise contains an object with these properties:

index (Integer): index of the item being referenced when the first promise resolved.
value: value contained in the first resolved promise.

Local Development

1git clone https://github.com/spacedoc/promise-map-first
2cd promise-map-first
3npm install
4npm test

License

No vulnerabilities found.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

10

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

10

License

Determines if the project has defined a license.

0

Maintained

Determines if the project is "actively maintained".

0

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

SAST

Determines if the project uses static code analysis.

0

Security-Policy

Determines if the project has published a security policy.

0

Fuzzing

Determines if the project uses fuzzing.

0

Branch-Protection

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

Score

3

/10

Last Scanned on 2025-01-27

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