Run results for: Set.has vs Array.includes for small number of items Bv1

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser: Chrome 132

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

set_1

130.6M/s

set_8

122.8M/s

array_1

109.1M/s

array_8

93.3M/s

View exact numbers

Test name	Executions per second
✓ set_1	130,552,416 Ops/sec
set_8	122,813,024 Ops/sec
array_1	109,126,928 Ops/sec
array_8	93,259,328 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const item_1 = Math.floor(Math.random() * 1);
const array_1 = new Array(1).map((_, i) => i);
const set_1 = new Set(array_1);

const item_2 = Math.floor(Math.random() * 2);
const array_2 = new Array(1, 2).map((_, i) => i);
const set_2 = new Set(array_2);

const item_4 = Math.floor(Math.random() * 4);
const array_4 = new Array(1, 2, 3, 4).map((_, i) => i);
const set_4 = new Set(array_4);

const item_8 = Math.floor(Math.random() * 8);
const array_8 = new Array(1, 2, 3, 4, 5, 6, 7, 8).map((_, i) => i);
const set_8 = new Set(array_8);

Tests:

array_1
array_1.includes(item_1)
set_1
set_1.has(item_1)
array_8
array_8.includes(item_8)
set_8
set_8.has(item_8)