Run results for: Optional Chaining versus _.get lodash

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; SAMSUNG SM-G981W) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/12.1 Chrome/79.0.3945.136 Mobile Safari/537.36

Browser: Chrome Mobile 79

Operating system: Android

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
Optional Chaining	1429144.0 Ops/sec
Lodash	623419.7 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)

Run results for: Optional Chaining versus _.get lodash

Optional Chaining

Lodash