Run results for: set.has vs. Object key lookup fork1

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.80 Safari/537.36

Browser: Chrome 98

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
includes	11055589.0 Ops/sec
key lookup	8992234.0 Ops/sec

Script Preparation code:

var a = ['f', 's', 't', 'fo', 'fi', 'si', 'se', 'e', 'n', 'ten'];
var b = {'f': true, 's': true, 't': true, 'fo': true, 'fi': true, 'si': true, 'se': true, 'e': true, 'n': true, 'ten': true}

Tests:

includes
return a.includes('se')
key lookup
return b['ten']

Run results for: set.has vs. Object key lookup fork1

includes

key lookup