Benchmark Run Result for: Lodash cloneDeep vs JSON parse

Lodash cloneDeep vs JSON parse

Comparison of deep cloning 10,000 objects in an array with Lodash cloneDeep vs JSON parse and stringify.

Date tested: one year ago

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36

Test name	Executions per second
Lodash cloneDeep	13.3 Ops/sec
JSON parse/stringify	720.5 Ops/sec

Benchmark definition (click to collapse):

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@1.3.1/lodash.min.js"></script>

Script Preparation code:

var items = [ ...Array(10000).keys() ].map( i => { return { bar: "foo" } });

Tests:

Lodash cloneDeep
_.cloneDeep(items);
JSON parse/stringify
JSON.parse(JSON.stringify(items));

Open this result on MeasureThat.net