I have found this took about 0.001s to print 256 characters Compare to Python took 0.000016s to print 256 characters, see F8 code and have modify to run only one call instead of 1000 iterations. https://gist.github.com/anonymous/18e372e8d0173e77b5c405920d4d3080
As this is frequently use for server-side swift that will definitely affected by expensive call, are there any alternative solution for converting Int to character close to Python timing? import Foundation var display: String = "" func printTimeElapsedWhenRunningCode(title: String, operation: ()->()) { let startTime = CFAbsoluteTimeGetCurrent() operation() let timeElapsed = CFAbsoluteTimeGetCurrent() - startTime print("Time elapsed for \(title): \(timeElapsed) s") } printTimeElapsedWhenRunningCode(title: "s1()") { let startingValue = Int(("A" as UnicodeScalar).value) // 65 for i in 0 ..< 256 { print(Character(UnicodeScalar(i + startingValue)!)) } }
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