JSFiddle - React, Tailwind, and code Playground

HTML

<span id="interval"></span>
<a href="javascript:;" id="delete">Удалить</a>

JavaScript

var interval,
    timer = tm = 10,
    obj = document.getElementById('interval');
function start() {
    obj.innerHTML = timer;
    interval = setInterval(function(){
        tm--;
        obj.innerHTML = tm;
        if (tm == 0) {
            clearInterval(interval);
            obj.innerHTML = '';
            document.getElementById("delete").onclick = start;
            document.getElementById("delete").innerHTML = 'Удалить';
            tm = timer;
            // Тут код на удаление
            alert('End');
            // Конец
        }
    },1000);
    document.getElementById("delete").onclick = stop;
    document.getElementById("delete").innerHTML = 'Отменить';
};
function stop() {
    tm = timer;
    obj.innerHTML = '';
    document.getElementById("delete").onclick = start;
    document.getElementById("delete").innerHTML = 'Удалить';
    clearInterval(interval);
};
document.getElementById("delete").onclick = start;