Function formatDate

scripts/web_timer.js:476–481

(date)

  }

  function formatDate(date) {
    let year = date.getFullYear();
    let month = padZero(date.getMonth() + 1);
    let day = padZero(date.getDate());
    return `${year}-${month}-${day}`;
  }

  function padZero(num) {
    return num.toString().padStart(2, "0");