yargs

yargs the modern, pirate-themed, successor to optimist.

v17.7.2 URL: https://unpkg.com/yargs@17.7.2/index.cjs

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argument args option parser parsing cli command

yargs-parser

the mighty option parser used by yargs

v21.1.1 URL: https://unpkg.com/yargs-parser@21.1.1/build/index.cjs

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argument parser yargs command cli parsing option args argument

jackspeak

A very strict and proper argument parser.

v4.1.0 URL: https://unpkg.com/jackspeak@4.1.0/dist/commonjs/index.js

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argument parser args option flag cli command line parse parsing

requires-port

Check if a protocol requires a certain port number to be added to an URL.

v1.0.0 URL: https://unpkg.com/requires-port@1.0.0/index.js

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port require http https ws wss gopher file ftp requires requried portnumber url parsing validation cows

ast-types

Esprima-compatible implementation of the Mozilla JS Parser API

v0.14.2 URL: https://unpkg.com/ast-types@0.14.2/main.js

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ast abstract syntax tree hierarchy mozilla spidermonkey parser api esprima types type system type checking dynamic types parsing transformation syntax