minimist

minimist

parse argument options

This module is the guts of optimist's argument parser without all the fanciful decoration.

example

var argv = require('minimist')(process.argv.slice(2));
console.log(argv);

$ node example/parse.js -a beep -b boop
{ _: [], a: 'beep', b: 'boop' }

$ node example/parse.js -x 3 -y 4 -n5 -abc --beep=boop foo bar baz
{
	_: ['foo', 'bar', 'baz'],
	x: 3,
	y: 4,
	n: 5,
	a: true,
	b: true,
	c: true,
	beep: 'boop'
}

security

Previous versions had a prototype pollution bug that could cause privilege escalation in some circumstances when handling untrusted user input.

Please use version 1.2.6 or later:

• https://security.snyk.io/vuln/SNYK-JS-MINIMIST-2429795 (version <=1.2.5)
• https://snyk.io/vuln/SNYK-JS-MINIMIST-559764 (version <=1.2.3)

methods

var parseArgs = require('minimist')

var argv = parseArgs(args, opts={})

Return an argument object argv populated with the array arguments from args.

argv._ contains all the arguments that didn't have an option associated with them.

Numeric-looking arguments will be returned as numbers unless opts.string or opts.boolean is set for that argument name.

Any arguments after '--' will not be parsed and will end up in argv._.

options can be:

• opts.string - a string or array of strings argument names to always treat as strings

• opts.boolean - a boolean, string or array of strings to always treat as booleans. if true will treat all double hyphenated arguments without equal signs as boolean (e.g. affects --foo, not -f or --foo=bar)

• opts.alias - an object mapping string names to strings or arrays of string argument names to use as aliases

• opts.default - an object mapping string argument names to default values

• opts.stopEarly - when true, populate argv._ with everything after the first non-option

• opts['--'] - when true, populate argv._ with everything before the -- and argv['--'] with everything after the --. Here's an example:

  > require('./')('one two three -- four five --six'.split(' '), { '--': true })
  {
    _: ['one', 'two', 'three'],
    '--': ['four', 'five', '--six']
  }
  

  Note that with opts['--'] set, parsing for arguments still stops after the --.

• opts.unknown - a function which is invoked with a command line parameter not defined in the opts configuration object. If the function returns false, the unknown option is not added to argv.

install

With npm do:

npm install minimist

license

MIT

Similar packages

Other packages similar to minimist

yargs

Yargs is a more feature-rich command-line argument parser. It provides a fluent interface for building complex argument parsing logic and includes features like command handling, help text generation, and more.

commander

Commander is another popular npm package for parsing command-line arguments. It is more oriented towards building command-line applications with sub-commands and action handlers.

arg

Arg is a simple argument parser with a focus on performance and small package size. It is similar to minimist but offers a different API and type-based parsing.

meow

Meow is a wrapper around minimist that provides a higher-level interface for creating CLIs. It includes features like help text generation and input validation.