code: function _showHints() {
      var hints = this._targetElement.querySelectorAll('.introjs-hint');
  
      if (hints && hints.length > 0) {
          for (var i = 0; i < hints.length; i++) {
              _showHint.call(this, hints[i].getAttribute('data-step'));
          }
      } else {
          _populateHints.call(this, this._targetElement);
      }
  }
docs: Show all hints
  
  @api private
  @method _showHints