Check if
argv
has a specific flag
Correctly stops looking after an --
argument terminator.
$ npm install has-flag
// 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
Returns a boolean for whether the flag exists.
Type: string
CLI flag to look for. The --
prefix is optional.
Type: string[]
Default: process.argv
CLI arguments.
MIT © Sindre Sorhus