Run results for: Compare clone object

Run details:

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

Browser: Firefox 138

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Lodash clone

5K/s

Object assign

3K/s

Spread

2K/s

Json Clone

178/s

Lodash cloneDeep

41/s

View exact numbers

Test name	Executions per second
✓ Lodash clone	4,976 Ops/sec
Object assign	3,055 Ops/sec
Spread	1,711 Ops/sec
Json Clone	178 Ops/sec
Lodash cloneDeep	41 Ops/sec

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))