let today = new Date();
let dd = String(today.getDate()).padStart(2, '0');
today = dd;
let dayStart = document.querySelector(".js-text");
dayStart.innerHTML = `${dd}`;
const today = String((new Date()).getDate()).padStart(2, '0');
const dayStartElements = document.querySelectorAll(".js-text");
dayStartElements.forEach((el) => { el.innerText = `${dd}` });
Может что-то не так?
let today = new Date();
let dd = String(today.getDate()).padStart(2, '0');
today = dd;
let dayStart = document.querySelector(".js-text");
let dayStart2 = document.querySelector(".js-text2");
dayStart.innerHTML = `${dd}`;
dayStart2.innerHTML = `${dd}`;