Method removeAll

src/gridstack.ts:1428–1440

* Removes all widgets from the grid. * @param removeDOM if `false` DOM elements won't be removed from the tree (Default? `true`). * @param triggerEvent if `false` (quiet mode) element will not be added to removed list and no 'removed' callbacks will be called (Default? true).

(removeDOM = true, triggerEvent = true)

   * @param triggerEvent if `false` (quiet mode) element will not be added to removed list and no 'removed' callbacks will be called (Default? true).
   */
  public removeAll(removeDOM = true, triggerEvent = true): GridStack {
    // always remove our DOM data (circular link) before list gets emptied and drag&drop permanently
    this.engine.nodes.forEach(n => {
      if (removeDOM && GridStack.addRemoveCB) {
        GridStack.addRemoveCB(this.el, n, false, false);
      }
      delete n.el.gridstackNode;
      if (!this.opts.staticGrid) this._removeDD(n.el);
    });
    this.engine.removeAll(removeDOM, triggerEvent);
    if (triggerEvent) this._triggerRemoveEvent();
    return this;
  }

  /**
   * Toggle the grid animation state.  Toggles the `grid-stack-animate` class.