Benchmark: Compare clone object with cloneObject

HTML Preparation code:

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

Script Preparation code:

var posts = {};
for (var i = 0; i < 10000; i++) {
    posts[i] = {
        id: i,
        content: "test posts " + i,
        commentsCount: 1,
        comments: {
            meta: {
                total: 1,
            },
            list: [{
                content: "just a comment"
            }]
        }
    }
}

Tests:

Spread
var newPosts = {...posts};
Lodash clone
var newPosts = _.clone(posts);
Lodash cloneDeep
var newPosts = _.cloneDeep(posts);
Object assign
var newPosts = Object.assign({}, posts)
Json Clone
var newPosts = JSON.parse(JSON.stringify(posts))
structuredClone
var newPosts = structuredClone(posts)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Spread
Lodash clone
Lodash cloneDeep
Object assign
Json Clone
structuredClone

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0

Browser/OS: Firefox 138 on Windows

View result in a separate tab

Test name	Executions per second
Spread	1810.5 Ops/sec
Lodash clone	4404.5 Ops/sec
Lodash cloneDeep	42.0 Ops/sec
Object assign	3142.6 Ops/sec
Json Clone	185.2 Ops/sec
structuredClone	136.3 Ops/sec

Related benchmarks:

Compare clone object with cloneObject (version: 1)

Compare clone object

Comparing performance of: Spread vs Lodash clone vs Lodash cloneDeep vs Object assign vs Json Clone vs structuredClone

Created: one year ago by: Guest

Jump to the latest result

Spread

Lodash clone

Lodash cloneDeep

Object assign

Json Clone

structuredClone

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A