[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [treeIterate](./rc-js-util.treeiterate.md) ## treeIterate() function Iterates over the whole tree, in a depth first fashion. **Signature:** ```typescript export declare function treeIterate>(node: TNode, callback: (node: TNode, parent: TNode | null, depth: number) => void): void; ``` ## Parameters

Parameter	Type	Description
node	TNode	The start point.
callback	(node: TNode, parent: TNode \| null, depth: number) => void	Called for each node, including the start point.

**Returns:** void ## Remarks See [treeIterate()](./rc-js-util.treeiterate.md).