Run results for: Test indexOf vs FindIndex vs include v2

Run details:

User agent: Mozilla/5.0 (Android 14; Mobile; rv:130.0) Gecko/130.0 Firefox/130.0

Browser: Firefox Mobile 130

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Index Of

86K/s

Includes

84K/s

Includes last

78K/s

Index Of last

75K/s

Find Index

11K/s

Find Index last

10K/s

View exact numbers

Test name	Executions per second
✓ Index Of	86,261 Ops/sec
Includes	83,979 Ops/sec
Includes last	78,383 Ops/sec
Index Of last	74,655 Ops/sec
Find Index	10,737 Ops/sec
Find Index last	10,411 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)