findInTree

Finds the first node in a React element or fiber tree a predicate matches, searching only downward. Start from an element, a fiber, or a class instance's _reactInternals.

function findInTree<T = any>(root: any, predicate: TreePredicate, options?: TreeSearchOptions): T | undefined

Parameters

Name	Type	Description
root	`any`	The element or fiber to start from; it is tested too.
predicate	`TreePredicate`	Tests each non-nullish node.
options?	`TreeSearchOptions`	`walkable` adds keys to the React ones (such as `return`), `ignore` skips keys, `maxDepth` defaults to 100.

Returns

T | undefined

The first match, or undefined when none matches.