Run results for: Optional Chaining versus _.get lodash (8 levels)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.70 Safari/537.36

Browser: Chrome 78

Operating system: Mac OS X 10.14.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Optional Chaining	18004140.0 Ops/sec
Lodash	2591662.0 Ops/sec

Script Preparation code:

var obj = {a: {b: {c: {d: {e: {f: {g: {h: 1 }}}}}}}}

Tests:

Optional Chaining
var _obj, _obj$a, _obj$a$b, _obj$a$b$c, _obj$a$b$c$d, _obj$a$b$c$d$e, _obj$a$b$c$d$e$f, _obj$a$b$c$d$e$f$g; var res = ((_obj = obj) === null || _obj === void 0 ? void 0 : (_obj$a = _obj.a) === null || _obj$a === void 0 ? void 0 : (_obj$a$b = _obj$a.b) === null || _obj$a$b === void 0 ? void 0 : (_obj$a$b$c = _obj$a$b.c) === null || _obj$a$b$c === void 0 ? void 0 : (_obj$a$b$c$d = _obj$a$b$c.d) === null || _obj$a$b$c$d === void 0 ? void 0 : (_obj$a$b$c$d$e = _obj$a$b$c$d.e) === null || _obj$a$b$c$d$e === void 0 ? void 0 : (_obj$a$b$c$d$e$f = _obj$a$b$c$d$e.f) === null || _obj$a$b$c$d$e$f === void 0 ? void 0 : (_obj$a$b$c$d$e$f$g = _obj$a$b$c$d$e$f.g) === null || _obj$a$b$c$d$e$f$g === void 0 ? void 0 : _obj$a$b$c$d$e$f$g.h) || 2;
Lodash
_.get(obj, "a.b.c.d.e.f.g.h", 2)