collapseAll<K> static method

List<TreeNode<K>> collapseAll<K>(List<TreeNode<K>> nodes)

Collapses all nodes in the tree.

Parameters:

• nodes (List<TreeNode<K>>, required): Tree nodes.

Returns: List<TreeNode<K>> — tree with all nodes collapsed.

Implementation

static List<TreeNode<K>> collapseAll<K>(List<TreeNode<K>> nodes) {
  return replaceNodes(nodes, (node) {
    return node.expanded ? node.updateState(expanded: false) : null;
  });
}