"use strict"; const getElement = selector => document.querySelector(selector); const padNum = (value, digits = 2) => value.toString().padStart(digits, "0"); const updateDisplay = () => { const now = new Date(); const minutes = now.getMinutes(); const seconds = now.getSeconds(); const milliseconds = padNum(now.getMilliseconds(), 3); getElement("#time").textContent = `${minutes}:${seconds}:${milliseconds}`; }; const startClick = () => { updateDisplay(); } const stopClick = () => { } const resetClick = () => { } document.addEventListener("DOMContentLoaded", () => { getElement("#start").addEventListener("click", startClick); getElement("#stop").addEventListener("click", stopClick); getElement("#reset").addEventListener("click", resetClick); });