Run results for: Symbol vs String property square bracket

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 16

Operating system: iOS 16.3

Device Platform: Mobile

Date tested: one year ago

Symbol

388.6M/s

String

281.3M/s

View exact numbers

Test name	Executions per second
✓ Symbol	388,617,152 Ops/sec
String	281,335,008 Ops/sec

Script Preparation code:

var foo = {};
var sym = Symbol("key");
var str = "key";

Tests: