Package Exports

yargs
yargs/yargs
yargs/yargs.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (yargs) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

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.

bash-completion shortcuts for commands and options.
and tons more.

Installation

Stable version:

npm i yargs

Bleeding edge version with the most recent features:

npm i yargs@next

Usage :

Simple Example

#!/usr/bin/env node
const argv = require('yargs').argv

if (argv.ships > 3 && argv.distance < 53.5) {
  console.log('Plunder more riffiwobbles!')
} else {
  console.log('Retreat from the xupptumblers!')
}

$ ./plunder.js --ships=4 --distance=22
Plunder more riffiwobbles!

$ ./plunder.js --ships 12 --distance 98.7
Retreat from the xupptumblers!

Complex Example

#!/usr/bin/env node
require('yargs') // eslint-disable-line
  .command('serve [port]', 'start the server', (yargs) => {
    yargs
      .positional('port', {
        describe: 'port to bind on',
        default: 5000
      })
  }, (argv) => {
    if (argv.verbose) console.info(`start server on :${argv.port}`)
    serve(argv.port)
  })
  .option('verbose', {
    alias: 'v',
    default: false
  })
  .argv

Run the example above with --help to see the help for the application.

Community :

Having problems? want to contribute? join our community slack.

JSPM

yargs