Run results for: Object Deep Copy e

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36

Browser: Chrome 92

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Recursive Deep Copy	251931.2 Ops/sec
JSON Deep Copy	273682.0 Ops/sec
lodash clone	244311.6 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.js"></script> <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>

Script Preparation code:

function recursiveDeepCopy(obj) {
    return Object.keys(obj).reduce((v, d) => Object.assign(v, {
        [d]: (obj[d].constructor === Object) ? recursiveDeepCopy(obj[d]) : obj[d]
    }), {});
}

function jsonDeepCopy(o) {
    return JSON.parse(JSON.stringify(o));
}

var dimensions = [{
    "dimensions": [{
        "runtime": {
            "common": {
                "client": null,
                "server": null
            }
        }

    }]
}]

Tests:

Recursive Deep Copy
var dimensionsCopy = recursiveDeepCopy(dimensions);
JSON Deep Copy
var dimensionsCopy = jsonDeepCopy(dimensions);
lodash clone
var dimensionsCopy = _.cloneDeep(dimensions);

Run results for: Object Deep Copy e

Produce a deep copy of a Javascript object where nested objects are not simply references to the originals.

Recursive Deep Copy

JSON Deep Copy

lodash clone