Method _complete

ng-dev/utils/spinner.ts:69–78

* Internal implementation for completing the spinner, marking it as completed, and printing the * final frame.

(prefix: string, text: string)

   * final frame.
   */
  private _complete(prefix: string, text: string) {
    if (this.completed) {
      return;
    }
    clearInterval(this.intervalId);
    this.printFrame(prefix, text);
    process.stdout.write('\n');
    this.showCursor();
    this.completed = true;
  }

  /** Get the next spinner character. */
  private getNextSpinnerCharacter() {