Insert an element after other one

JavaScript version
const insertAfter = (ele, anotherEle) => anotherEle.parentNode.insertBefore(ele, anotherEle.nextSibling);
// Or
const insertAfter = (ele, anotherEle) => anotherEle.insertAdjacentElement('afterend', ele);
TypeScript version
const insertAfter = (ele: Element, anotherEle: Element): Element | null => (anotherEle.parentNode ? anotherEle.parentNode.insertBefore(ele, anotherEle.nextSibling) : null);
// Or
const insertAfter = (ele: Element, anotherEle: Element): Element | null => anotherEle.insertAdjacentElement('afterend', ele);