Benchmark: Intl.DateFormat with/without caching

Tests:

caching
window.a = window.a || new Intl.DateTimeFormat('en-US', { year: 'numeric', month: 'long', day: 'numeric' }); for (let i = 10000; i< 10100; i++) { window.a.format(new Date()) }
no caching
for (let i = 10000; i< 10100; i++) { new Intl.DateTimeFormat('en-US', { year: 'numeric', month: 'long', day: 'numeric' }).format(new Date()) }

Rendered benchmark preparation results:

Previous results

Test case name	Result
caching
no caching

Latest run results:

Run details: (Test run date: 8 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser/OS: Chrome 142 on Mac OS X 10.15.7

caching

22K/s

no caching

443/s

View exact numbers

Test name	Executions per second
✓ caching	21,684 Ops/sec
no caching	443 Ops/sec

Intl.DateFormat with/without caching (version: 1)