Why these codes do not work?

Question

age = 18

user = gets.chomp

case user
when user >= age
puts "welcome"

when user <= age
puts " leave"
end

Answer 1

Because user input is a string and age is an integer. You're trying to compare different data types.

Answer 2

Try converting the user input to an integer using the gets.to_i method

Answer 3

This works:

age = 18

user = gets.to_i

if user >= age
puts "welcome"

else
puts "leave"
end

Answer 4

what should it look like then?...i changed the value of varisble age to a string by putting double quotes...now when i run and enter any number, it gives no output