Run results for: Lodash uniq vs Object keys

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36

Browser: Chrome 97

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Lodash uniq	3293756.0 Ops/sec
Object keys unique	2031545.9 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 arr = ['Jane', 'Bob', 'Kat', 'Kat', 'Bob', 'Jane', 'Ian', 'Jane', 'Bob', 'Kat', 'Kat', 'Bob', 'Jane', 'Ian'];

Array.prototype.uniqueString = function() {
    let tmpObj = {}
    for (var i = 0; i < this.length; i++) {
        tmpObj[this[i]] = this[i]
    }
    return Object.values(tmpObj)
}

Tests:

Lodash uniq
var result = _.uniq(arr);
Object keys unique
var result = arr.uniqueString();

Run results for: Lodash uniq vs Object keys

Lodash uniq

Object keys unique