code: function getIfOverriden() {
      var args = process.argv.slice(2);
      var envFlagIndex = args.indexOf('--env');
  
      // check if environment string passed as argument
      if (!!~envFlagIndex) {
          return args[++envFlagIndex];
      }
      // check if environment is already set
      else if (isset(process.env.NODE_ENV)) {
          return process.env.NODE_ENV;
      } else {
          return false;
      }
  
  
  }
docs: Check whether node environment is already set manually or requested to set
  by `--env` commandline flag, then return that environment string.
  
  return {*}