React: Get text content of React element

export function getNodeText(
  node: React.ReactElement | string | number
): string {
  if (!node) {
    return ''
  }

  if (typeof node === 'string' || typeof node === 'number') {
    return node.toString()
  }

  if (Array.isArray(node)) {
    return node.map(getNodeText).join('')
  }

  return getNodeText(node.props.children)
}