Benchmark: Seconds to HH:MM:SS - 'Date.toISOString()' vs 'Date.setSeconds().toISOString()' vs 'Math.floor()'

Script Preparation code:

var VideoDuration = 3235.261

Tests:

Date().toISOString()
return new Date(VideoDuration * 1000).toISOString().slice(11, 19)
Date.setSeconds().toISOString()
var date = new Date(null) date.setSeconds(VideoDuration) return date.toISOString().slice(11, 19)
Math.floor
var h = Math.floor(VideoDuration / 3600) var m = Math.floor(VideoDuration % 3600 / 60) var s = Math.floor(VideoDuration % 3600 % 60) h = h ? String(h).padStart(2,0) : '00' m = m ? String(m).padStart(2,0) : '00' s = s ? String(s).padStart(2,0) : '00' return `${h}:${m}:${s}`

Rendered benchmark preparation results:

Previous results

Test case name	Result
Date().toISOString()
Date.setSeconds().toISOString()
Math.floor

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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/108.0.0.0 Safari/537.36

Browser/OS: Chrome 108 on Windows

Test name	Executions per second
Date().toISOString()	864292.5 Ops/sec
Date.setSeconds().toISOString()	676462.7 Ops/sec
Math.floor	1162653.0 Ops/sec

Seconds to HH:MM:SS - 'Date.toISOString()' vs 'Date.setSeconds().toISOString()' vs 'Math.floor()' (version: 0)