export function replaceElement(elem: Node, replacement: Node): void {
    const prev = (replacement.prev = elem.prev);
    if (prev) {
        prev.next = replacement;
    }

    const next = (replacement.next = elem.next);
    if (next) {
        next.prev = replacement;
    }

    const parent = (replacement.parent = elem.parent);
    if (parent) {
        const childs = parent.children;
        childs[childs.lastIndexOf(elem)] = replacement;
    }
}

export function removeElement(elem: Node): void {
    if (elem.prev) elem.prev.next = elem.next;
    if (elem.next) elem.next.prev = elem.prev;

    if (elem.parent) {
        const childs = elem.parent.children;
        childs.splice(childs.lastIndexOf(elem), 1);
    }
}