// https://developer.mozilla.org/en-US/docs/Web/Guide/Events/Mutation_events#Mutation_Observers_alternatives_examples
//can't we use https://developer.mozilla.org/en-US/docs/Web/API/Node/contains#:~:text=The%20Node.,direct%20children%2C%20and%20so%20on.?
export function onRemove(element: Element, callback: Function) {
    let observer = new MutationObserver(mutations => {
        mutations.forEach(mutation =>{
            mutation.removedNodes.forEach(removed =>{
                if(element === removed){
                    callback(removed);
                    observer.disconnect();
                }
            })
        })
    });
    observer.observe(element.parentElement || element.getRootNode(), {
        childList: true,
    });
};