Run results for: Array vs. object

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36

Browser: Chrome 102

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Object lookup	4809340.0 Ops/sec
Array lookup	14247550.0 Ops/sec

Script Preparation code:

var obj = {
    1: true,
    2: false,
    3: true,
    4: false
};
var arr = [1, 3];

Tests: