Method showHelpAfterError

lib/command.js:262–266

* Display the help or a custom message after an error occurs. * * @param {(boolean|string)} [displayHelp] * @return {Command} `this` command for chaining

(displayHelp = true)

   * @return {Command} `this` command for chaining
   */
  showHelpAfterError(displayHelp = true) {
    if (typeof displayHelp !== 'string') displayHelp = !!displayHelp;
    this._showHelpAfterError = displayHelp;
    return this;
  }

  /**
   * Display suggestion of similar commands for unknown commands, or options for unknown options.