Great, but it will make code execution slow.

Madan kumar nath 7 років тому оновлено anonymous 3 роки тому 4
An "else" eliminates evaluation of nested if conditions. So factoring this way will make code slow
I was referring to "Replace Nested Conditional with Guard Clauses". 
Nope, it won't be slower if you return the values right from these if-s instead of waiting for the final return.