Method sortNodes

src/gridstack-engine.ts:451–454

* Sort the nodes array from first to last, or reverse. * This is called during collision/placement operations to enforce a specific order. * * @param dir sort direction: 1 for ascending (first to last), -1 for descending (last to first) * @returns the engine instance for chaining *

(dir: 1 | -1 = 1)

   * engine.sortNodes(-1);  // Sort descending
   */
  public sortNodes(dir: 1 | -1 = 1): GridStackEngine {
    this.nodes = Utils.sort(this.nodes, dir);
    return this;
  }

  /** @internal called to top gravity pack the items back OR revert back to original Y positions when floating */
  protected _packNodes(): GridStackEngine {