Why following code is not running ?

Question

hasPrefix and hasSufix method
var str1 = "Information Technology"
var str2 = "Technology"

if str1.hasSufix(str2)
{
print("stt1 is sub string of str1")
}

Answer 1

I tried this example:
https://www.dotnetperls.com/hasprefix-swift

It is also not working. Maybe it has to do with the swift version. I don't know which version sololearn uses.