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has-flag ![Build Status](https://travis-ci.org/sindresorhus/has-flag.svg?branch=master)
Check if
argv
has a specific flag
Correctly stops looking after an --
argument terminator.
Install
$ npm install has-flag
Usage
// foo.js
const hasFlag = require('has-flag');
hasFlag('unicorn');
//=> true
hasFlag('--unicorn');
//=> true
hasFlag('f');
//=> 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 for whether the flag exists.
flag
Type: string
CLI flag to look for. The --
prefix is optional.
argv
Type: string[]
Default: process.argv
CLI arguments.
License
MIT © Sindre Sorhus