Function flattenBy

packages/table-core/src/utils.ts:115–134

(
  arr: TNode[],
  getChildren: (item: TNode) => TNode[]
)

}

export function flattenBy<TNode>(
  arr: TNode[],
  getChildren: (item: TNode) => TNode[]
) {
  const flat: TNode[] = []

  const recurse = (subArr: TNode[]) => {
    subArr.forEach(item => {
      flat.push(item)
      const children = getChildren(item)
      if (children?.length) {
        recurse(children)
      }
    })
  }

  recurse(arr)

  return flat
}

export function memo<TDeps extends readonly any[], TDepArgs, TResult>(
  getDeps: (depArgs?: TDepArgs) => [...TDeps],