Run results for: Map string versus number keys

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Mac OS X 10.12

Device Platform: Desktop

Date tested: 5 months ago

Int

957.6M/s

String

939.0M/s

View exact numbers

Test name	Executions per second
✓ Int	957,639,296 Ops/sec
String	939,031,552 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);