#1360 - Number of Days Between Two Dates

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Problem Description

Write a program to count the number of days between two dates.

The two dates are given as strings, their format is `YYYY-MM-DD` as shown in the examples.

Solution

/**
 * @param {string} date1
 * @param {string} date2
 * @return {number}
 */
var daysBetweenDates = function(date1, date2) {
  return Math.abs(new Date(date1) - new Date(date2)) / (24 * 60 * 60 * 1000);
};