Integer vs string test time

honoluludesktop

I understand that if vari=="0" is slower then if vari==0. Is it better to do if vari.to_i==0?

Cleverbeans

It seems to be slower to do the conversion then do the comparison. To test something like this you can use the Time.now() method to make a simple stopwatch. Here is how I tested it.


def str_test()
   t = Time.now()
   (1..10000000).each{|i| "0" == "0"}
   puts(Time.now() - t)
end

def int_test()
   t = Time.now()
   (1..10000000).each{|i| "0".to_i == 0}
   puts(Time.now() - t)
end

str_test ran in 6.922 and int_test ran in 8.406, feel free to run the test yourself.

honoluludesktop

Thanks, I will have to remember how to do that:)