Run results for: Array.includes() vs. manual compare

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36

Browser: Chrome 84

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
includes()	923865.1 Ops/sec
manual comparison	894605.6 Ops/sec

Script Preparation code:

var arr = ['cat', 'dog', 'duck'];
var search1 = 'dog';
var search2 = 'cow';

Tests:

includes()
var found = arr.includes(search1); var notFound = arr.includes(search2);
manual comparison
var found = search1 === 'cat' || search1 === 'dog' || search1 === 'duck'; var notFound = search2 === 'cat' || search2 === 'dog' || search2 === 'duck';