Run results for: Test indexOf vs FindIndex vs include v2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Includes

1.7M/s

Index Of

1.7M/s

Index Of last

953K/s

Includes last

949K/s

Find Index

102K/s

Find Index last

39K/s

View exact numbers

Test name	Executions per second
✓ Includes	1,670,994 Ops/sec
Index Of	1,665,440 Ops/sec
Index Of last	953,478 Ops/sec
Includes last	948,863 Ops/sec
Find Index	102,203 Ops/sec
Find Index last	38,654 Ops/sec

Script Preparation code:

var bigIdList = new Array(15000);
bigIdList.fill({ id: 0 });
bigIdList = bigIdList.map((el) => el.id = Math.floor(Math.random() * 15000))

var test = 7500
var last = 15000

Tests:

Index Of
bigIdList.indexOf(test) !== -1
Find Index
bigIdList.findIndex((item) => item === test)
Includes
bigIdList.includes(test)
Index Of last
bigIdList.indexOf(last) !== -1
Find Index last
bigIdList.findIndex((item) => item === last)
Includes last
bigIdList.includes(last)