3 module.exports = (flag, argv = process.argv) => {
4 const prefix = flag.startsWith('-') ? '' : (flag.length === 1 ? '-' : '--');
5 const position = argv.indexOf(prefix + flag);
6 const terminatorPosition = argv.indexOf('--');
7 return position !== -1 && (terminatorPosition === -1 || position < terminatorPosition);