Run results for: _.merge vs _.assign vs _.reduce vs JS reduce vs Js assign

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

_.reduce

5.9M/s

Js assign

33K/s

Lodash assign

10K/s

Lodash merge

9K/s

Js reduce

21/s

View exact numbers

HTML Preparation code:

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

Script Preparation code:

var array = Array(1000).fill().map((_, index) => ({
    [(Math.random() + 1).toString(36).substring(2)]: index
}))

Tests: