Benchmark: Caching the DateTimeFormatter

Script Preparation code:

var formatter = new Intl.DateTimeFormat('jp', {
    weekday: 'short',
})

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
Un-cached
Cached

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.128 Safari/537.36

Browser/OS: Chrome 89 on Mac OS X 11.2.3

Test name	Executions per second
Un-cached	8401.5 Ops/sec
Cached	519036.8 Ops/sec

Caching the DateTimeFormatter (version: 0)