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Run results for:
lodash cloneDeep vs JSON stringify/parse 2
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=575395" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Edg/131.0.0.0
Browser:
Chrome 131
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
lodash cloneDeep
250.6 Ops/sec
JSON stringify then parse
401.3 Ops/sec
Spread Operator
12932.3 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 cloneDeep
myCopy = _.cloneDeep(arr);
JSON stringify then parse
JSON.parse(JSON.stringify(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 })) } }));