Benchmark: Unique Lodash vs Set

HTML Preparation code:

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

Script Preparation code:

var a = [],i;
for (i = 0; i < 1000; i++) 
    a.push(Math.floor(Math.random() * 1000) + 1);

var unique = (function(){
  let keys = Object.keys;
  return function(arr){
    let ob = {};
    let len = arr;
    let retArr=[];
    for(let i=0;i<len;i++){
      if(ob[arr[i]] === undefined){
     	ob[arr[i]]=1;
        retArr.push(arr[i]);
      }
    }
    return retArr;
  }
}());

Tests:

Lodash
_.uniq(a)
Set Spread based
[... new Set(a)]
Set ArrayFrom based
Array.from(new Set(a))
Object Based Unique
unique(a)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash
Set Spread based
Set ArrayFrom based
Object Based Unique

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.2319 YaBrowser/23.9.0.2319 Yowser/2.5 Safari/537.36

Browser/OS: Yandex Browser 23 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Lodash	42371.3 Ops/sec
Set Spread based	61689.1 Ops/sec
Set ArrayFrom based	61623.5 Ops/sec
Object Based Unique	75802.6 Ops/sec

Unique Lodash vs Set (version: 0)

Comparing performance of: Lodash vs Set Spread based vs Set ArrayFrom based vs Object Based Unique

Created: 3 years ago by: Registered User

Jump to the latest result

Lodash

Set Spread based

Set ArrayFrom based

Object Based Unique

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A