Method cleanNodes

src/gridstack-engine.ts:660–667

* Clean all dirty and last tried information from nodes. * This resets the dirty state tracking for all nodes. * * @returns the engine instance for chaining * * @internal

()

   * @internal
   */
  public cleanNodes(): GridStackEngine {
    if (this.batchMode) return this;
    this.nodes.forEach(n => {
      delete n._dirty;
      delete n._lastTried;
    });
    return this;
  }

  /**
   * Save the initial position/size of all nodes to track real dirty state.