Isn't t violation of codes?

Question

x = gets.to_i
if x > 5
puts "wrong"
elsif x <= 5
puts "right"
else
puts "error"
end

it works just fine when i enter numbers, i expected t would give error when i enter a string, but t puts right...why, why?

Answer 1

different languages have different output methods, 'puts' in C++ signifies for 'Output of string', C++ Is basic language,Complex languages like python and Ruby has different output method, you need to follow that to output,

Answer 2

The "to_i" method also accepts strings as input:

https://apidock.com/ruby/String/to_i

The link above explains what the method does when it finds a string:

> If there is not a valid number at the start of str, 0 is returned.

I changed your code a bit to show exactly what to_i is doing, as shown here:

https://code.sololearn.com/cgtvo6lTuYqK

If you input "A", then x becomes 0, which is <= 5, and therefore "right" according to your code.