What's the default value for Boolean type?

[moonformeli]

Hi, I don't understand this part from Readme.md

// hello.js
const arg = require('arg');

const args = arg({
	// Types
	'--help':    Boolean,
	'--version': Boolean,
	'--verbose': arg.COUNT,   // Counts the number of times --verbose is passed
	'--port':    Number,      // --port <number> or --port=<number>
	'--name':    String,      // --name <string> or --name=<string>
	'--tag':     [String],    // --tag <string> or --tag=<string>

	// Aliases
	'-v':        '--verbose',
	'-n':        '--name',    // -n <string>; result is stored in --name
	'--label':   '--name'     // --label <string> or --label=<string>;
	                          //     result is stored in --name
});

console.log(args);
/*
{
	_: ["foo", "bar", "--foobar"],
	'--port': 1234,
	'--verbose': 4,
	'--name': "My name",
	'--tag': ["qux", "qix"]
}
*/

I think --verbose should be true, not 4, because I got true from my practice.

// t.ts
const arg = require("arg");

const args = arg(
  {
    "--project": String,
    "--pass": Boolean,

    "-p": "--project"
  },
  {
    argv: process.argv.slice(2)
  }
);

// package.json
"start": "ts-node ./t.ts -p hello --pass"

// Result
{ _: [], '--project': 'hello', '--pass': true }

So, can someone tell me why it is 4? If it should'be fixed, I'll send a pr.

[moonformeli]

I think this might be a human mistake from copy-paste of this

const arg = require('arg');

const argv = ['-AAAA', '-BBBB'];

const args = arg({
	'-A': arg.COUNT,
	'-B': [Boolean]
}, {
	argv
});

console.log(args);
/*
{
	_: [],
	'-A': 4,
	'-B': [true, true, true, true]
}
*/

[Qix-]

You're putting arg.COUNT there. If you just want a Boolean, pass Boolean.

[moonformeli]

Oh. My bad. I thought it's Boolean type. Thanks