Benchmark: capitalize 2 versions

Tests:

slice concat
const string = 'aaaBBBCccc' const newString = string.charAt(0).toUpperCase() + string.slice(1);
replace
const string = 'aaaBBBCccc' const newString = string.replace(/^[a-z]/, s => s.toUpperCase())

Rendered benchmark preparation results:

Previous results

Test case name	Result
slice concat
replace

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser/OS: Chrome 107 on Windows

Test name	Executions per second
slice concat	647261200.0 Ops/sec
replace	2174801.0 Ops/sec

capitalize 2 versions (version: 0)