Run results for: Date.now() vs new Date().getTime() vs performance.now()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62

Browser: Chrome 103

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Date.now()	5019140.0 Ops/sec
new Date().getTime();	4765294.0 Ops/sec
performance.now()	3841042.0 Ops/sec

Script Preparation code:

var timestamp = null;

Tests:

Date.now()
timestamp = Date.now();
new Date().getTime();
timestamp = new Date().getTime();
performance.now()
timestamp = performance.now()

Run results for: Date.now() vs new Date().getTime() vs performance.now()

Date.now()

new Date().getTime();

performance.now()