dateDifference.js

const dateDiffInMillis = (date1, date2) =>
Math.abs(date2.getTime() - date1.getTime());

const dayDifferenceInSeconds = (date1, date2) =>
Math.round(dateDiffInMillis(date1, date2) / 1000);


const minuteDifferenceBetweenDates = (date1, date2) =>
  Math.round(dayDifferenceInSeconds(date1, date2) / 60);


const hourDifferenceBetweenDates = (date1, date2) =>
  Math.round(minuteDifferenceBetweenDates(date1, date2) / 60);

const dayDifferenceBetweenDays = (date1, date2) =>
  Math.round(hourDifferenceBetweenDates(date1, date2) / 24);

const formatDate = (date) =>
  `${date.getDate()}-${date.getMonth()}-${date.getFullYear()} ` +
  `${date.getHours()}:${date.getMinutes()}`;