Benchmark: Set vs Object vs Map vs array but with strings

Script Preparation code:

const array = Array.from({ length: 10000 }, (_, idx) => `${idx}`);
const set = new Set(array);
const object = Object.fromEntries(array.map((x) => [`${x}`, true]));
const map = new Map(Object.entries(object));

Tests:

Set
set.has('0'); set.has('42'); set.has('69'); set.has('9999'); set.has('520'); set.has('1314'); set.has('168'); set.has('19'); set.has('4'); set.has('10000');
Object
'0' in object; '42' in object; '69' in object; '9999' in object; '520' in object; '1314' in object; '168' in object; '19' in object; '4' in object; '10000' in object;
Map
map.has('0'); map.has('42'); map.has('69'); map.has('9999'); map.has('520'); map.has('1314'); map.has('168'); map.has('19'); map.has('4'); map.has('10000');
Array
array.includes('0'); array.includes('42'); array.includes('69'); array.includes('9999'); array.includes('520'); array.includes('1314'); array.includes('168'); array.includes('19'); array.includes('4'); array.includes('10000');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Set
Object
Map
Array

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 8 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser/OS: Chrome 142 on Mac OS X 10.15.7

View result in a separate tab

Set

234.2M/s

Map

228.9M/s

Object

177.3M/s

Array

52K/s

View exact numbers

Test name	Executions per second
✓ Set	234,187,712 Ops/sec
Map	228,874,096 Ops/sec
Object	177,250,592 Ops/sec
Array	51,863 Ops/sec

Set vs Object vs Map vs array but with strings (version: 1)

Compare the speed to retrieve a value from three data structures that can be used for boolean referencing; i.e. for mapping enabled settings.

Comparing performance of: `Set vs Object vs Map vs Array`

Created: 8 months ago by: Guest

Go to the latest result

Set

Object

Map

Array

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Set vs Object vs Map vs array but with strings (version: 1)

Compare the speed to retrieve a value from three data structures that can be used for boolean referencing; i.e. for mapping enabled settings.

Comparing performance of: Set vs Object vs Map vs Array

Created: 8 months ago by: Guest

Go to the latest result

Set

Object

Map

Array

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Set vs Object vs Map vs Array`