Method _exit

lib/command.js:534–540

* Call process.exit, and _exitCallback if defined. * * @param {number} exitCode exit code for using with process.exit * @param {string} code an id string representing the error * @param {string} message human-readable description of the error * @return never * @private

(exitCode, code, message)

   */

  _exit(exitCode, code, message) {
    if (this._exitCallback) {
      this._exitCallback(new CommanderError(exitCode, code, message));
      // Expecting this line is not reached.
    }
    process.exit(exitCode);
  }

  /**
   * Register callback `fn` for the command.