Run results for: [aech0Xod] Map vs Object - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:108.0) Gecko/20100101 Firefox/108.0

Browser: Firefox 108

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Map lookup	13912.4 Ops/sec
Obj lookup	17750.5 Ops/sec
Map delete	12935.1 Ops/sec
Obj delete	14603.3 Ops/sec

Website performance monitoring

Script Preparation code:

var map = new Map();
var obj = {};

map.set('a', 5);
obj['a'] = 5;

var i = 0, count = 1000, a;

Tests:

Map lookup
for (i = 0; i < count; i++) { a = map.get('a'); }
Obj lookup
for (i = 0; i < count; i++) { a = obj['a']; }
Map delete
for (i = 0; i < count; i++) { map.delete('a'); }
Obj delete
for (i = 0; i < count; i++) { delete obj['a']; }