Run results for: Symbol vs String property square bracket, loop

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Symbol	2786229.0 Ops/sec
String	2723901.2 Ops/sec

Script Preparation code:

var foo1 = {};
var foo2 = {};
var sym = [Symbol("key1"), Symbol("key2"), Symbol("key3"), Symbol("key4"), Symbol("key5"), Symbol("key6"), Symbol("key7"), Symbol("key8"), Symbol("key9"), Symbol("key0")];
var str = ["key1", "key2", "key3", "key4", "key5", "key6", "key7", "key8", "key9", "key0"];

Tests:

Symbol
for(const k of sym) foo1[k] = 1;
String
for(const k of str) foo2[k] = 1;