Run results for: Optional Chaining versus _.get lodash

Run details:

User agent: Mozilla/5.0 (iPad; CPU OS 12_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/84.0.4147.71 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 84

Operating system: iOS 12.4

Device Platform: Tablet

Date tested: 4 years ago

Test name	Executions per second
Optional Chaining	761716.4 Ops/sec
Lodash	159026.3 Ops/sec

Script Preparation code:

var obj = {a: {b: {c: {d: 1}}}}
var badObj = {}

Tests:

Optional Chaining
(obj.a == null ? undefined : obj.a.b == null ? undefined : obj.a.b.c == null ? undefined : obj.a.b.c.d) || 2 (badObj.a == null ? undefined : badObj.a.b == null ? undefined : badObj.a.b.c == null ? undefined : badObj.a.b.c.d) || 2
Lodash
_.get(obj, "a.b.c.d", 2) _.get(badObj, "a.b.c.d", 2)