Run results for: Object keys vs Array map v2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:82.0) Gecko/20100101 Firefox/82.0

Browser: Firefox 82

Operating system: Mac OS X 10.14

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Object keys	6.1 Ops/sec
Array map	6.2 Ops/sec
Object keys (No console.log)	1373.7 Ops/sec
Array map (No console.log)	5084.6 Ops/sec

Script Preparation code:

var obj = {}
var arr = []
for (var i = 0; i < 10000; i++) {
    let random = Math.floor(Math.random() * 10)
    obj[i] = {
        value: random
    };
    arr[i] = {
        value: random
    }
}

Tests:

Object keys
Object.keys(obj).map(key => console.log(obj[key].value))
Array map
arr.map(item => console.log(item.value))
Object keys (No console.log)
Object.keys(obj).map(key => obj[key].value)
Array map (No console.log)
arr.map(item => item.value)

Run results for: Object keys vs Array map v2

Object keys

Array map

Object keys (No console.log)

Array map (No console.log)