Run results for: Map string versus number keys

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0

Browser: Firefox 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

String

1106.5M/s

Int

982.3M/s

View exact numbers

Test name	Executions per second
✓ String	1,106,513,664 Ops/sec
Int	982,276,864 Ops/sec

Script Preparation code:

var intMap = new Map();
intMap.set(1, "aaa");
intMap.set(2, "bbb");
intMap.set(3, "ccc");

var stringMap = new Map();
stringMap.set("a", "aaa");
stringMap.set("b", "bbb");
stringMap.set("c", "ccc");

Tests:

String
var a = stringMap.get("a"); var b = stringMap.get("b"); var c = stringMap.get("c");
Int
var a1 = intMap.get(1); var b2 = intMap.get(2); var c3 = intMap.get(3);