hd-utils/lib/utils/date/compareDates.js

A handy utils for modern JS developers

/**
   * @description will check if the passed dates are equal, you can pass a comparisonLevel to determine the level of granularity for the date comparison
   *
   * @example
   * const firstDate = new Date("2023-12-12T12:30:00");
  const secondDate = new Date("2023-12-12T15:45:00");
  
  compareDates(firstDate, secondDate); // Output: false
  compareDates(firstDate, secondDate, "year"); // Output: true
  compareDates(firstDate, secondDate, "hour"); // Output: false
  
   */
export default function compareDates(firstDate, secondDate, comparisonLevel = "full") {
    const date1 = new Date(firstDate);
    const date2 = new Date(secondDate);
    if (comparisonLevel === "full") {
        return date1.getTime() === date2.getTime();
    }
    const compare = (a, b) => {
        return a === b;
    };
    switch (comparisonLevel) {
        case "year":
            return compare(date1.getFullYear(), date2.getFullYear());
        case "month":
            return compare(date1.getMonth(), date2.getMonth());
        case "day":
            return compare(date1.getDate(), date2.getDate());
        case "year-month":
            return (compare(date1.getFullYear(), date2.getFullYear()) &&
                compare(date1.getMonth(), date2.getMonth()));
        case "hour":
            return compare(date1.getHours(), date2.getHours());
        case "year-month-day":
            return (compare(date1.getFullYear(), date2.getFullYear()) &&
                compare(date1.getMonth(), date2.getMonth()) &&
                compare(date1.getDate(), date2.getDate()));
        case "year-month-day-hour":
            return (compare(date1.getFullYear(), date2.getFullYear()) &&
                compare(date1.getMonth(), date2.getMonth()) &&
                compare(date1.getDate(), date2.getDate()) &&
                compare(date1.getHours(), date2.getHours()));
        default:
            throw new Error("Invalid date comparisonLevel parameter");
    }
}