What doing here is to test performance script golang and efficiency statement we use for daily coding.
to run file, going to directory switchvsif and run this command
go test -bench . -benchtime 30s
the result will you get
go test -bench . -benchtime 30s
1
goos: darwin
goarch: amd64
pkg: github.com/suryatresna/goperformance/switchvsif
BenchmarkSwitchString-4 100
10000
1000000
100000000
3000000000
3000000000 17.5 ns/op
1
BenchmarkIfString-4 100
10000
1000000
100000000
3000000000
3000000000 15.2 ns/op
1
BenchmarkSwitchInt-4 100
10000
1000000
100000000
5000000000
5000000000 13.0 ns/op
1
BenchmarkIfInt-4 100
10000
1000000
100000000
2000000000
2000000000 12.9 ns/op
PASS
ok github.com/suryatresna/goperformance/switchvsif 194.933s
What going on here, we can see when use switch for validate string is more lower than use if, but it's different when use for numeric (int) that's fast than if.