Run results for: new Date().toISOString() vs new Date().toLocaleString()

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:129.0) Gecko/20100101 Firefox/129.0

Browser: Firefox 129

Operating system: Windows

Device Platform: Desktop

Date tested: 8 months ago

Test name	Executions per second
new Date().toISOString()	2012793.5 Ops/sec
new Date().toLocaleString()	321886.0 Ops/sec

Script Preparation code:

var timestamp = null;

AخA
 
var timestamp = null;

Tests:

new Date().toISOString()
timestamp = new Date().toISOString();
timestamp = new Date().toISOString();
new Date().toLocaleString()
timestamp = new Date().toLocaleString();
timestamp = new Date().toLocaleString();