has-flag

Check if argv has a specific flag

has-flag Build Status

Check if argv has a specific flag

Correctly stops looking after an -- argument terminator.

Install

$ npm install --save has-flag

Usage

// foo.js
const hasFlag = require('has-flag');

hasFlag('unicorn');
//=> true

hasFlag('--unicorn');
//=> true

hasFlag('-f');
//=> true

hasFlag('foo=bar');
//=> true

hasFlag('foo');
//=> false

hasFlag('rainbow');
//=> false
$ node foo.js -f --unicorn --foo=bar -- --rainbow

API

hasFlag(flag, [argv])

Returns a boolean whether the flag exists.

flag

Type: string

CLI flag to look for. The -- prefix is optional.

argv

Type: array
Default: process.argv

CLI arguments.

License

MIT © Sindre Sorhus

Pincer is a project which aims to provide best library discovery tools for developers. We're growing day by day. We have only npm platform for now but we will add the others as much as we can.