code: function _snapToPage() {
  
          // Check whether pagination is active
          if (!this.options.paginated ||
              this._scroll.scrollForceCount || //don't paginate while moving
              (this._scroll.springPosition !== undefined)) {
              return;
          }
  
          // When the energy is below the thresshold, paginate to the current page
          var item;
          switch (this.options.paginationMode) {
              case PaginationMode.SCROLL:
                  if (!this.options.paginationEnergyThreshold || (Math.abs(this._scroll.particle.getEnergy()) <= this.options.paginationEnergyThreshold)) {
                      item = this.options.alignment ? this.getLastVisibleItem() : this.getFirstVisibleItem();
                      if (item && item.renderNode) {
                          this.goToRenderNode(item.renderNode);
                      }
                  }
                  break;
              case PaginationMode.PAGE:
                  item = this.options.alignment ? this.getLastVisibleItem() : this.getFirstVisibleItem();
                  if (item && item.renderNode) {
                      this.goToRenderNode(item.renderNode);
                  }
                  break;
          }
      }
docs: Snaps to a page when pagination is enabled.