Run results for: Direct vs optional chaining - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
detail1 direct	11609868.0 Ops/sec
detail1 optional	12111548.0 Ops/sec
detail2 direct	4420009.5 Ops/sec
detail2 optional	6474129.5 Ops/sec
detail3 direct	6398137.5 Ops/sec
detail3 optional	11777348.0 Ops/sec

Script Preparation code:

var detail1 = null
var detail2 = {prop1: 'asdf', prop2: null}
var detail3 = {prop1: null, prop2: 'asdf'}

Tests:

detail1 direct
let y = detail1 && detail1.prop1 && detail1.prop2
detail1 optional
let y = detail1?.prop1 && detail1?.prop2
detail2 direct
let y = detail2 && detail2.prop1 && detail2.prop2
detail2 optional
let y = detail2?.prop1 && detail2?.prop2
detail3 direct
let y = detail3 && detail3.prop1 && detail3.prop2
detail3 optional
let y = detail3?.prop1 && detail3?.prop2