Flag-parse

A node tool for parse command flag

function

we provide a tool to parse the command flag in node env, if the field has double horizontal line --name=roadhub, it is a full name ，else if the field has a single horizontal line only,it is a shortcut name -n=roadhub，it 's value will be map to it's full name's value

> node -f --name=roadhub --age=12 index.js

in index.js

var flag = require("flag-parse").default
 
/**
 * default: a default value when process.argv has no this flag
 * type: is data type for this field , one of `string` , `number` and `bool`
 * usage: is usage for this field ,it will be print when you call flag.printHelp
 * shortcut: this is optional field , it is a abbreviation for this field
 */
 
let flags = flag.parse({
    name:{default: "", type: "string", usage:"user's name",shortcut:"n"},
    fork:{default: true, type: "bool", usage:"is fork",shortcut:"f"},
})
flag.printHelp("usage: `git <command>`, follow flag is useable:", "thank you to use git")

you can get this argument in flags, if you forget to config a field , it will be push to rest by the original order

console.log(flags) // {fork: true, name: "roadhub",}
console.log(flag.rest) //["--age=12", "index.js"]
flag.printHelp("usage: `git <command> <flag>`, follow flag is useable:", "thank you to use git")
/**
 *  usage: `git <command> <flag>`, follow flag is useable:
 *
 *          -name,-n    user's name
 *          -fork,-f    is fork
 *
 *  thank you to use git
 */

thanks