问如何按小时对数据进行排序？

EN

function getHourParts(object) {

    function getKey(h) {
       return h + '-' + (h + 1);
    }

    function getTime(s) {
        var t = s.split(':').map(Number);
        return { h: t[0], m: t[1] };
    }

    var result = {},
        start = getTime(object.timeStart),
        end = getTime(object.timeEnd);

    while (start.h < end.h) {
        result[getKey(start.h)] = 60 - start.m;
        ++start.h;
        start.m = 0;
    }
    result[getKey(end.h)] = end.m - start.m;
    return result;
}

console.log(getHourParts({ timeStart: '04:23', timeEnd: '06:45' }));
console.log(getHourParts({ timeStart: '12:03', timeEnd: '12:05' }));

var durations = [{timeStart: "04:23 AM", timeEnd: "06:45 AM", }, {timeStart: "09:23 AM", timeEnd: "11:30 AM", }, {timeStart: "11:09 PM", timeEnd: "01:19 PM", }];

function getValue(time) {
	var [hour, minute, period] = time.replace(':', ' ').split(' ');
	var date = new Date();
	date.setHours((period === 'PM' ? 12 : 0) + +hour, +minute);
	return date;
}

var result = {};

durations.forEach(duration => {
	var time = getValue(duration.timeStart),
		end = getValue(duration.timeEnd);

	for (var hour = time.getHours(); hour <= end.getHours(); hour++) {
		var endMinute = hour === end.getHours() ? end.getMinutes() : 59,
			minute = 0,
			hourSpan = `${hour}-${hour + 1}`;

		result[hourSpan] = result[hourSpan] || new Map;
		while (minute <= endMinute)
			result[hourSpan].set(minute, minute++);
	}
});
Object.keys(result).forEach(span => {
	result[span] = result[span].size;
});
console.clear();
console.log(result)