@types/yargs

What is @types/yargs?

The @types/yargs package provides TypeScript type definitions for the yargs library, which is a tool to help build interactive command line tools, by parsing arguments and generating an elegant user interface. It helps TypeScript developers to have auto-completion and type checking when using yargs.

What are @types/yargs's main functionalities?

Command Module Definition

Defines a command with options. This example creates a 'get' command with a required 'url' option.

import * as yargs from 'yargs';

yargs.command('get', 'make a get HTTP request', {
  url: {
    describe: 'URL to make request to',
    demand: true,
    alias: 'u',
    type: 'string'
  }
}, (argv) => {
  console.log(`Making a GET request to: ${argv.url}`);
});

Option Parsing

Parses command line options. This example parses a boolean 'verbose' option.

import * as yargs from 'yargs';

const argv = yargs.option('verbose', {
  alias: 'v',
  type: 'boolean',
  description: 'Run with verbose logging'
}).argv;

if (argv.verbose) console.log('Verbose mode on');

Help and Version Setup

Sets up automatic version and help message support. This example sets the version of the CLI tool and enables the default help support.

import * as yargs from 'yargs';

yargs.version('1.0.0').help().argv;

Other packages similar to @types/yargs

commander

Commander is another popular npm package for building command line interfaces. It offers a high-level API for creating commands and options, similar to yargs. Commander is known for its simplicity and ease of use, but yargs provides more detailed control over argument parsing and generates more comprehensive help messages automatically.

meow

Meow is a lighter alternative to yargs for building CLI tools. It focuses on simplicity and minimal configuration. While it is easier to set up for simple scripts, yargs offers more advanced features like command-specific options, middleware, and automatic help generation.

README

Installation

npm install --save @types/yargs

Summary

This package contains type definitions for yargs (https://github.com/chevex/yargs).

Details

Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/yargs/v12.

Additional Details

• Last updated: Wed, 23 Sep 2020 19:15:29 GMT
• Dependencies: none
• Global values: none

Credits

These definitions were written by Martin Poelstra, Mizunashi Mana, Jeffery Grajkowski, Jimi (Dimitris) Charalampidis, Steffen Viken Valvåg, Emily Marigold Klassen, and ExE Boss.