Gathering detailed insights and metrics for yargs
yargs the modern, pirate-themed successor to optimist.
Installations
npm install yargsDeveloper Guide
BETA
Typescript
No
Module System
ESM
Min. Node Version
>=12
Node Version
14.21.3
NPM Version
9.6.5
Score
96.4
Supply Chain
99.6
Quality
77.9
Maintenance
100
Vulnerability
100
License
Releases
56
Contributors
271
Unable to fetch Contributors
Languages
3
JavaScript
TypeScript
HTML
JavaScript (70.91%)
TypeScript (28.85%)
HTML (0.25%)
Developer
Download Statistics
Total Downloads
21,408,553,226
Last Day
17,781,540
Last Week
80,506,962
Last Month
363,361,891
Last Year
4,688,804,142
GitHub Statistics
11,161 Stars
1,826 Commits
993 Forks
81 Watching
87 Branches
271 Contributors
Bundle Size
110.95 kB
Minified
33.51 kB
Minified + Gzipped
Maintainers
2
Package Meta Information
Latest Version
17.7.2
Package Id
yargs@17.7.2
Unpacked Size
285.57 kB
Size
64.15 kB
File Count
62
NPM Version
9.6.5
Node Version
14.21.3
Publised On
27 Apr 2023
Total Downloads
Cumulative downloads
Total Downloads
21,408,553,226
Last day
-3.9%
17,781,540
Compared to previous day
Last week
-15%
80,506,962
Compared to previous week
Last month
3.5%
363,361,891
Compared to previous month
Last year
5.8%
4,688,804,142
Compared to previous year
Daily Downloads
Weekly Downloads
Monthly Downloads
Yearly Downloads
Versions
Yargs
Yargs be a node.js library fer hearties tryin' ter parse optstrings
Description
Yargs helps you build interactive command line tools, by parsing arguments and generating an elegant user interface.
It gives you:
- commands and (grouped) options (
my-program.js serve --port=5000). - a dynamically generated help menu based on your arguments:
mocha [spec..]
Run tests with Mocha
Commands
mocha inspect [spec..] Run tests with Mocha [default]
mocha init <path> create a client-side Mocha setup at <path>
Rules & Behavior
--allow-uncaught Allow uncaught errors to propagate [boolean]
--async-only, -A Require all tests to use a callback (async) or
return a Promise [boolean]
- bash-completion shortcuts for commands and options.
- and tons more.
Installation
Stable version:
1npm i yargs
Bleeding edge version with the most recent features:
1npm i yargs@next
Usage
Simple Example
1#!/usr/bin/env node 2const yargs = require('yargs/yargs') 3const { hideBin } = require('yargs/helpers') 4const argv = yargs(hideBin(process.argv)).argv 5 6if (argv.ships > 3 && argv.distance < 53.5) { 7 console.log('Plunder more riffiwobbles!') 8} else { 9 console.log('Retreat from the xupptumblers!') 10}
1$ ./plunder.js --ships=4 --distance=22 2Plunder more riffiwobbles! 3 4$ ./plunder.js --ships 12 --distance 98.7 5Retreat from the xupptumblers!
Note:
hideBinis a shorthand forprocess.argv.slice(2). It has the benefit that it takes into account variations in some environments, e.g., Electron.
Complex Example
1#!/usr/bin/env node 2const yargs = require('yargs/yargs') 3const { hideBin } = require('yargs/helpers') 4 5yargs(hideBin(process.argv)) 6 .command('serve [port]', 'start the server', (yargs) => { 7 return yargs 8 .positional('port', { 9 describe: 'port to bind on', 10 default: 5000 11 }) 12 }, (argv) => { 13 if (argv.verbose) console.info(`start server on :${argv.port}`) 14 serve(argv.port) 15 }) 16 .option('verbose', { 17 alias: 'v', 18 type: 'boolean', 19 description: 'Run with verbose logging' 20 }) 21 .parse()
Run the example above with --help to see the help for the application.
Supported Platforms
TypeScript
yargs has type definitions at @types/yargs.
npm i @types/yargs --save-dev
See usage examples in docs.
Deno
As of v16, yargs supports Deno:
1import yargs from 'https://deno.land/x/yargs/deno.ts' 2import { Arguments } from 'https://deno.land/x/yargs/deno-types.ts' 3 4yargs(Deno.args) 5 .command('download <files...>', 'download a list of files', (yargs: any) => { 6 return yargs.positional('files', { 7 describe: 'a list of files to do something with' 8 }) 9 }, (argv: Arguments) => { 10 console.info(argv) 11 }) 12 .strictCommands() 13 .demandCommand(1) 14 .parse()
ESM
As of v16,yargs supports ESM imports:
1import yargs from 'yargs' 2import { hideBin } from 'yargs/helpers' 3 4yargs(hideBin(process.argv)) 5 .command('curl <url>', 'fetch the contents of the URL', () => {}, (argv) => { 6 console.info(argv) 7 }) 8 .demandCommand(1) 9 .parse()
Usage in Browser
See examples of using yargs in the browser in docs.
Community
Having problems? want to contribute? join our community slack.
Documentation
Table of Contents
Supported Node.js Versions
Libraries in this ecosystem make a best effort to track Node.js' release schedule. Here's a post on why we think this is important.
No vulnerabilities found.
Reason
no dangerous workflow patterns detected
Reason
GitHub workflow tokens follow principle of least privilege
Details
- Warn: jobLevel 'contents' permission set to 'write': .github/workflows/release-please.yml:10
- Info: topLevel 'contents' permission set to 'read': .github/workflows/ci.yaml:9
- Info: found token with 'none' permissions: .github/workflows/release-please.yml:1
Reason
no binaries found in the repo
Reason
0 existing vulnerabilities detected
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: MIT License: LICENSE:0
Reason
4 commit(s) and 6 issue activity found in the last 90 days -- score normalized to 8
Reason
Found 20/25 approved changesets -- score normalized to 8
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
dependency not pinned by hash detected -- score normalized to 0
Details
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:29: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:30: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:42: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:43: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:53: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:54: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/ci.yaml:60: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:69: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:70: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:18: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/ci.yaml:19: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/ci.yaml/main?enable=pin
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/release-please.yml:15: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/release-please.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release-please.yml:20: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/release-please.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release-please.yml:21: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/release-please.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release-please.yml:39: update your workflow using https://app.stepsecurity.io/secureworkflow/yargs/yargs/release-please.yml/main?enable=pin
- Warn: npmCommand not pinned by hash: .github/workflows/ci.yaml:47
- Warn: npmCommand not pinned by hash: .github/workflows/ci.yaml:49
- Warn: npmCommand not pinned by hash: .github/workflows/ci.yaml:58
- Warn: npmCommand not pinned by hash: .github/workflows/ci.yaml:59
- Warn: npmCommand not pinned by hash: .github/workflows/ci.yaml:74
- Warn: npmCommand not pinned by hash: .github/workflows/ci.yaml:75
- Warn: npmCommand not pinned by hash: .github/workflows/ci.yaml:23
- Warn: npmCommand not pinned by hash: .github/workflows/ci.yaml:25
- Warn: npmCommand not pinned by hash: .github/workflows/release-please.yml:25
- Warn: npmCommand not pinned by hash: .github/workflows/release-please.yml:26
- Warn: npmCommand not pinned by hash: .github/workflows/release-please.yml:45
- Info: 0 out of 13 GitHub-owned GitHubAction dependencies pinned
- Info: 0 out of 2 third-party GitHubAction dependencies pinned
- Info: 0 out of 11 npmCommand dependencies pinned
Reason
security policy file not detected
Details
- Warn: no security policy file detected
- Warn: no security file to analyze
- Warn: no security file to analyze
- Warn: no security file to analyze
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
SAST tool is not run on all commits -- score normalized to 0
Details
- Warn: 0 commits out of 28 are checked with a SAST tool
Score
6.5
/10
Last Scanned on 2025-01-27
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