Run results for: Lodash Deep Copy3

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Browser: Firefox 128

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 8 days ago

Test name	Executions per second
Lodash copydeep	455.1 Ops/sec
Spread operator	4271.3 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js'></script>

Script Preparation code:

// Test data
var arr = new Array(1000).fill(null).map(() => ({
    id: Math.random(),
    event_id: `evt_${Math.random()}`,
    calendar_id: `cal_${Math.random()}`,
    event_json: {
        title: "Test Event",
        description: "Test Description",
        startDate: "2024-01-01",
        endDate: "2024-01-02",
        location: {
            address: "123 Test St",
            lat: 44.4582983,
            lng: -93.1616132
        },
        attendees: [
            { email: "test1@test.com", response: "accepted" },
            { email: "test2@test.com", response: "pending" }
        ]
    },
    is_latest: 1,
    start_date: "2024-01-01",
    end_date: "2024-01-02"
}));

Tests:

Lodash copydeep
myCopy = _.cloneDeep(arr);
Spread operator
myCopy = arr.map(item => ({ ...item, event_json: { ...item.event_json, location: { ...item.event_json.location }, attendees: item.event_json.attendees.map(attendee => ({ ...attendee })) } }));

Run results for: Lodash Deep Copy3

Lodash copydeep

Spread operator