Run results for: moment date sort 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.116 Safari/537.36

Browser: Chrome 80

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
no memoization	195710.8 Ops/sec
with memoization	5549.2 Ops/sec
with memoization (integer)	16031.8 Ops/sec
no memoization (integer)	506111.2 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.0/moment.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var _sortMomentDates = (a, b) => {
    if (a.isSame(b)) {
        return 0;
    }

    return a.isBefore(b) ? -1 : 1;
};

var _sortDateValues = (a, b) => b - a;

var sortMomentDates = _.memoize(_sortMomentDates, (...args) => args.map(v => v.format('MM/DD/YYYY')).join("_"));
var sortDateValues = _.memoize(_sortDateValues, (a, b) => BigInt(a) << 17n | BigInt(b));

var rawDates = [{"startDate":"2020-02-01","endDate":"2020-02-29"},{"startDate":"2020-02-01","endDate":"2020-02-29"},{"startDate":"2020-03-01","endDate":"2020-03-31"},{"startDate":"2020-03-01","endDate":"2020-03-31"},{"startDate":"2020-03-01","endDate":"2020-03-31"},{"startDate":"2020-04-01","endDate":"2020-04-30"},{"startDate":"2020-04-01","endDate":"2020-04-30"},{"startDate":"2020-04-01","endDate":"2020-04-30"},{"startDate":"2020-05-01","endDate":"2020-05-31"},{"startDate":"2020-05-01","endDate":"2020-05-31"},{"startDate":"2020-05-01","endDate":"2020-05-31"},{"startDate":"2020-06-01","endDate":"2020-06-30"},{"startDate":"2020-06-01","endDate":"2020-06-30"},{"startDate":"2020-06-01","endDate":"2020-06-30"},{"startDate":"2020-06-01","endDate":"2020-06-30"},{"startDate":"2020-06-01","endDate":"2020-06-30"},{"startDate":"2020-07-01","endDate":"2020-07-31"},{"startDate":"2020-07-01","endDate":"2020-07-31"},{"startDate":"2020-07-01","endDate":"2020-07-31"},{"startDate":"2020-07-01","endDate":"2020-07-31"},{"startDate":"2020-07-01","endDate":"2020-07-31"},{"startDate":"2020-08-01","endDate":"2020-08-31"},{"startDate":"2020-08-01","endDate":"2020-08-31"},{"startDate":"2020-08-01","endDate":"2020-08-31"},{"startDate":"2020-08-01","endDate":"2020-08-31"},{"startDate":"2020-08-01","endDate":"2020-08-31"},{"startDate":"2020-09-01","endDate":"2020-09-30"},{"startDate":"2020-09-01","endDate":"2020-09-30"},{"startDate":"2020-09-01","endDate":"2020-09-30"},{"startDate":"2020-09-01","endDate":"2020-09-30"},{"startDate":"2020-09-01","endDate":"2020-09-30"},{"startDate":"2020-10-01","endDate":"2020-10-31"},{"startDate":"2020-10-01","endDate":"2020-10-31"},{"startDate":"2020-10-01","endDate":"2020-10-31"},{"startDate":"2020-10-01","endDate":"2020-10-31"},{"startDate":"2020-10-01","endDate":"2020-10-31"},{"startDate":"2020-11-01","endDate":"2020-11-30"},{"startDate":"2020-11-01","endDate":"2020-11-30"},{"startDate":"2020-11-01","endDate":"2020-11-30"},{"startDate":"2020-11-01","endDate":"2020-11-30"},{"startDate":"2020-11-01","endDate":"2020-11-30"},{"startDate":"2020-12-01","endDate":"2020-12-31"},{"startDate":"2020-12-01","endDate":"2020-12-31"},{"startDate":"2020-12-01","endDate":"2020-12-31"},{"startDate":"2020-12-01","endDate":"2020-12-31"},{"startDate":"2020-12-01","endDate":"2020-12-31"},{"startDate":"2020-02-01","endDate":"2020-02-29"},{"startDate":"2020-03-01","endDate":"2020-03-31"},{"startDate":"2020-04-01","endDate":"2020-04-30"},{"startDate":"2020-05-01","endDate":"2020-05-31"},{"startDate":"2020-06-01","endDate":"2020-06-30"},{"startDate":"2020-07-01","endDate":"2020-07-31"},{"startDate":"2020-08-01","endDate":"2020-08-31"},{"startDate":"2020-09-01","endDate":"2020-09-30"},{"startDate":"2020-10-01","endDate":"2020-10-31"},{"startDate":"2020-11-01","endDate":"2020-11-30"},{"startDate":"2020-12-01","endDate":"2020-12-31"},{"startDate":"2020-02-01","endDate":"2020-02-29"},{"startDate":"2020-03-01","endDate":"2020-03-31"},{"startDate":"2020-04-01","endDate":"2020-04-30"},{"startDate":"2020-05-01","endDate":"2020-05-31"},{"startDate":"2020-03-01","endDate":"2020-03-31"},{"startDate":"2020-04-01","endDate":"2020-04-30"},{"startDate":"2020-05-01","endDate":"2020-05-31"},{"startDate":"2020-02-01","endDate":"2020-02-29"},{"startDate":"2020-03-01","endDate":"2020-03-31"},{"startDate":"2020-04-01","endDate":"2020-04-30"},{"startDate":"2020-05-01","endDate":"2020-05-31"},{"startDate":"2020-06-01","endDate":"2020-06-30"},{"startDate":"2020-07-01","endDate":"2020-07-31"},{"startDate":"2020-08-01","endDate":"2020-08-31"},{"startDate":"2020-09-01","endDate":"2020-09-30"},{"startDate":"2020-10-01","endDate":"2020-10-31"},{"startDate":"2020-11-01","endDate":"2020-11-30"},{"startDate":"2020-12-01","endDate":"2020-12-31"},{"startDate":"2020-02-01","endDate":"2020-02-29"},{"startDate":"2020-03-01","endDate":"2020-03-31"},{"startDate":"2020-04-01","endDate":"2020-04-30"},{"startDate":"2020-05-01","endDate":"2020-05-31"}];

var momentDates = rawDates.map(e => moment(e.startDate));
var dateValues = momentDates.map(x => 10000 * x.year() + 100 * x.month() + x.date());

Tests:

no memoization
var sortedDates = momentDates.sort(_sortMomentDates);
with memoization
var sortedDates = momentDates.sort(sortMomentDates);
with memoization (integer)
var sortedDates = dateValues.sort(sortDateValues);
no memoization (integer)
var sortedDates = dateValues.sort(_sortDateValues);

Run results for: moment date sort 2

no memoization

with memoization

with memoization (integer)

no memoization (integer)