Помогите написать код, который будет заданную дату и время в input type="datetime-local" к которому будет ввестись отсчёт по таймеру

Question

Суть в том что-бы таймер отсчитывал время к заданной дате и времени.

    function countdown(dateEnd) {
        var timer, days, hours, minutes, seconds;
      
        dateEnd = new Date(dateEnd);
        dateEnd = dateEnd.getTime();
      
        if (isNaN(dateEnd)) {
          return;
        }
      
        timer = setInterval(calculate, 1000);
      
        function calculate() {
          var dateStart = new Date();
          var dateStart = new Date(dateStart.getUTCFullYear(),
            dateStart.getUTCMonth(),
            dateStart.getUTCDate(),
            dateStart.getUTCHours(),
            dateStart.getUTCMinutes(),
            dateStart.getUTCSeconds());
          var timeRemaining = parseInt((dateEnd - dateStart.getTime()) / 1000)
      
          if (timeRemaining >= 0) {
            days = parseInt(timeRemaining / 86400);
            timeRemaining = (timeRemaining % 86400);
            hours = parseInt(timeRemaining / 3600);
            timeRemaining = (timeRemaining % 3600);
            minutes = parseInt(timeRemaining / 60);
            timeRemaining = (timeRemaining % 60);
            seconds = parseInt(timeRemaining);
      
      
            document.getElementById("days").innerHTML = parseInt(days, 10);
            document.getElementById("hours").innerHTML = ("0" + hours).slice(-2);
            document.getElementById("minutes").innerHTML = ("0" + minutes).slice(-2);
            document.getElementById("seconds").innerHTML = ("0" + seconds).slice(-2);
          } else {
            return;
          }
        }
      
        function display(days, hours, minutes, seconds) {}
      }


      countdown ('09.12.2020 12.00.00 AM'); //сюда должна попадать инфа с инпута

<!DOCTYPE html>
<html lang="ru">
<head>
    <title></title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
    <link href="css/style.css" rel="stylesheet" >
    <script src="js/script.js" ></script>
</head>
<body>

      <div class="countdown">
        <div class="time-section">
            <span class="count" id="days"></span>
            <span class="units">Дней</span>
        </div>
        <div class="time-section">
            <span class="count" id="hours"></span>
            <span class="units">Часов</span>
        </div>
        <div class="time-section">
            <span class="count" id="minutes"></span>
            <span class="units">Минут</span>
        </div>
        <div class="time-section">
            <span class="count" id="seconds"></span>
            <span class="units">Секунд</span>
        </div>
      </div>
<div class="inp">
      <input id="wer" type="datetime-local">
      <button id="go">GO</button>
    </div>



 <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
 <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
 <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>
 </body> 

 </html>

БЛОГ НА HUSL

Помогите написать код, который будет заданную дату и время в input type="datetime-local" к которому будет ввестись отсчёт по таймеру

Ответы (0 шт):