function sleep(ms) { return new Promise(resolve => setTimeout(resolve, ms)); } What is the JavaScript version of sleep()? In the w3school documentation for setTimeout

function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

window.addEventListener('load', async function() {
    'use strict';
    debugger;
    const cells = document.getElementsByClassName("cDIES");

    for (var i = 0; i < cells.length ; i++) {
        var cell = cells[i];
        cell.click();
    }
    const currentDay = document.getElementsByClassName("cDIES  currentDay")[0];
    currentDay.click();
 https://cuty.io/emX3irzm67