Run results for: Map and Object number key vs string key

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser: Chrome 124

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Integer	52.8 Ops/sec
Float	67.8 Ops/sec
String	75.8 Ops/sec
Integer with Object	62.2 Ops/sec
Float with Object	24.4 Ops/sec
String with Object	72.8 Ops/sec

Script Preparation code:

var map = new Map();
var obj = {};

var randomInteger = Array(100000).fill(0).map(v => Math.floor(Math.random() * 1e8));
var randomFloat = Array(100000).fill(0).map(v => Math.random() * 1e8);
var randomString = Array(100000).fill(0).map(v => (Math.random() * 1e8).toString());

Tests:

Integer
map.clear(); randomInteger.forEach(v => { map.set(v, Math.random()); map.get(v); });
Float
map.clear(); randomFloat.forEach(v => { map.set(v, v); map.get(v); });
String
map.clear(); randomString.forEach(v => { map.set(v, v); map.get(v); });
Integer with Object
obj = {}; randomInteger.forEach(v => { obj[v] = v; obj[v]; });
Float with Object
obj = {}; randomFloat.forEach(v => { obj[v] = v; obj[v]; });
String with Object
obj = {}; randomString.forEach(v => { obj[v] = v; obj[v]; });

Run results for: Map and Object number key vs string key

Integer

Float

String

Integer with Object

Float with Object

String with Object