Method checkUnknownOptions

src/command.ts:273–289

* Check if the parsed options contain any unknown options * * Exit and output error when true

()

   * Exit and output error when true
   */
  checkUnknownOptions(): void {
    const { options, globalCommand } = this.cli

    if (!this.config.allowUnknownOptions) {
      for (const name of Object.keys(options)) {
        if (
          name !== '--' &&
          !this.hasOption(name) &&
          !globalCommand.hasOption(name)
        ) {
          throw new CACError(
            `Unknown option \`${name.length > 1 ? `--${name}` : `-${name}`}\``,
          )
        }
      }
    }
  }

  /**
   * Check if the required string-type options exist