Check if
argvhas a specific flag
Correctly stops looking after an -- argument terminator.
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$ 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.
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MIT © Sindre Sorhus