Function isInstanceOfElement

src/util.ts:245–261

(
  node: Element | HTMLElement | SVGImageElement,
  instance: T,
)

}

export const isInstanceOfElement = <
  T extends typeof Element | typeof HTMLElement | typeof SVGImageElement,
>(
  node: Element | HTMLElement | SVGImageElement,
  instance: T,
): node is T['prototype'] => {
  if (node instanceof instance) return true

  const nodePrototype = Object.getPrototypeOf(node)

  if (nodePrototype === null) return false

  return (
    nodePrototype.constructor.name === instance.name ||
    isInstanceOfElement(nodePrototype, instance)
  )
}