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minimist
Advanced tools
Package description
The minimist package is a command-line argument parser that helps to convert argument strings into a structured format. It is designed to be minimalist and simple to use, focusing on parsing the options passed to a Node.js script.
Parse command-line arguments
This feature allows you to parse command-line arguments. The process.argv array is sliced to remove the first two elements (node and script path), and the remaining elements are parsed by minimist to create an object with the arguments.
const minimist = require('minimist');
const args = minimist(process.argv.slice(2));
console.log(args);
Custom argument parsing
This feature allows for custom parsing options such as specifying which arguments should be treated as strings or booleans, and setting aliases for argument names.
const minimist = require('minimist');
const args = minimist(process.argv.slice(2), {
string: ['lang'],
boolean: ['version'],
alias: { v: 'version' }
});
console.log(args);
Default argument values
This feature allows you to provide default values for arguments that are not supplied on the command line.
const minimist = require('minimist');
const args = minimist(process.argv.slice(2), {
default: { lang: 'en', debug: false }
});
console.log(args);
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 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 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 is a wrapper around minimist that provides a higher-level interface for creating CLIs. It includes features like help text generation and input validation.
Changelog
v0.2.3 - 2023-02-09
#17
#12
#10
#15
#8
#9
Readme
parse argument options
This module is the guts of optimist's argument parser without all the fanciful decoration.
var argv = require('minimist')(process.argv.slice(2));
console.dir(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'
}
var parseArgs = require('minimist')
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
stringsopts.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 aliasesopts.default
- an object mapping string argument names to default valuesopts['--']
- 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
--
.
With npm do:
npm install minimist
MIT
FAQs
parse argument options
The npm package minimist receives a total of 44,372,441 weekly downloads. As such, minimist popularity was classified as popular.
We found that minimist demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
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