Александр Макаров

function sum(arr) {
  let result = 0;

  for (let i = (arr.length - 1); i !== 0; i--) {
    if (arr[i] === 0) return result;
    result += Math.abs(arr[i]);
  }
  return result;
}

console.log(sum([2.1, 3.1, 4.1, 6.1, 7.1, 9.1, 11.1, 0.0, 2.2, 1.4])); // 3.6
console.log(sum([2.1, 3.1, 4.1, 6.1, 7.1, 9.1, 11.1, 0.0])); // 0

const electricDate = document.querySelector(".electronic__date");
const electricTime = document.querySelector(".electronic__clock");

setInterval(checkDateAndTime, 1000);

function checkAddZero(num) {
    return num < 10 ? "0" + num : num
}

function checkDateAndTime() {
    const DATE = new Date();
    const week = ["ВС", "ПОН", "ВТ", "СР", "ЧТ", "ПТ", "СУБ"];

    let year = DATE.getFullYear();
    let month = checkAddZero(DATE.getMonth() + 1);
    let day = checkAddZero(DATE.getDate());
    let hour = checkAddZero(DATE.getHours());
    let minute = checkAddZero(DATE.getMinutes());
    let second = checkAddZero(DATE.getSeconds());
    
    electricDate.innerHTML = year + "-" + month + "-" + day + " " + week[DATE.getDay()];
    electricTime.innerHTML = hour + ":" + minute + ":" + second;
}