A dead simple NodeJS argument parser

parseArgs.js

/*
parseArgs works for the following:
-f bar
--foo bar
-f=bar
--f=bar
*/
const parseArgs = () => {
  const args = {};
  const rxp = /-{1,2}(?<flag>[\w\n]+)[= ]{1}(?<value>[^\s]+)/gi;
  const argv = process.argv.slice(2).join(" ");
  let matches;
  while ((matches = rxp.exec(argv))) {
    const { flag, value } = matches.groups;
    args[flag] = value;
  }
  return args;
};