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locales | 2 år sedan | |
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yargs.js | 2 år sedan |
Yargs be a node.js library fer hearties tryin' ter parse optstrings
Yargs helps you build interactive command line tools, by parsing arguments and generating an elegant user interface.
It gives you:
my-program.js serve --port=5000
).Stable version:
npm i yargs
Bleeding edge version with the most recent features:
npm i yargs@next
#!/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!
#!/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.
Having problems? want to contribute? join our community slack.