Run results for: Optional chaining native vs && && code vs babel-transformed

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36

Browser: Chrome 95

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Optional Chaining	7568161.0 Ops/sec
&& && code	1545922.0 Ops/sec
babel-transformed	517915.5 Ops/sec

Script Preparation code:

Tests:

Optional Chaining
foo?.bar?.baz?.qux?.aaa
&& && code
foo && foo.bar && foo.bar.baz && foo.bar.baz.qux && foo.bar.baz.qux.aaa
babel-transformed
(_foo = foo) === null || _foo === void 0 ? void 0 : (_foo$bar = _foo.bar) === null || _foo$bar === void 0 ? void 0 : (_foo$bar$baz = _foo$bar.baz) === null || _foo$bar$baz === void 0 ? void 0 : (_foo$bar$baz$qux = _foo$bar$baz.qux) === null || _foo$bar$baz$qux === void 0 ? void 0 : _foo$bar$baz$qux.aaa;

Run results for: Optional chaining native vs && && code vs babel-transformed

Optional Chaining

&& && code

babel-transformed