Run results for: Optional Chaining plus Nullish Coalescing versus _.get lodash

Run details:

User agent: Mozilla/5.0 (Linux; U; Android 12; zh-cn; RMX3115 Build/SP1A.210812.016) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.61 Mobile Safari/537.36 HeyTapBrowser/40.8.27.1

Browser: Chrome Mobile 90

Operating system: Android

Device Platform: Mobile

Date tested: one month ago

Test name	Executions per second
Optional Chaining	1522005.0 Ops/sec
Lodash	1005697.0 Ops/sec

Script Preparation code:

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

Tests:

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

Run results for: Optional Chaining plus Nullish Coalescing versus _.get lodash

Optional Chaining

Lodash