Run results for: Object.keys/Object.values/Object.entries

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36

Browser: Chrome 101

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Object.keys - get all values	28.1 Ops/sec
Object.values - get all values	1806.2 Ops/sec
Object.entries - get all values	41.8 Ops/sec
Object.keys - get first	142.7 Ops/sec
Object.values - get first value	1859.3 Ops/sec
Object.entries - get first value	46.3 Ops/sec

Script Preparation code:

window.testObject = {};

for (i = 0; i <= 100000; i++) {
	testObject[i] = Math.random();
}

Tests:

Object.keys - get all values
Object.keys(window.testObject).map(key => window.testObject[key])
Object.values - get all values
Object.values(window.testObject)
Object.entries - get all values
Object.entries(window.testObject).map(result => result[1]);
Object.keys - get first
window.testObject[Object.keys(window.testObject)[0]]
Object.values - get first value
Object.values(window.testObject)[0]
Object.entries - get first value
Object.entries(window.testObject)[0][1]