Method requiredOption

lib/command.js:796–804

* Add a required option which must have a value after parsing. This usually means * the option must be specified on the command line. (Otherwise the same as .option().) * * The `flags` string contains the short and/or long flags, separated by comma, a pipe or space. * * @param {string

(flags, description, parseArg, defaultValue)

   */

  requiredOption(flags, description, parseArg, defaultValue) {
    return this._optionEx(
      { mandatory: true },
      flags,
      description,
      parseArg,
      defaultValue,
    );
  }

  /**
   * Alter parsing of short flags with optional values.