Ruby gets/puts only for strings?

Question

I\'m new to Ruby and am currently working on some practice code which looks like the following:

puts \'Hello there, Can you tell me your favourite number?\'
         


        

Answer 1

you can also make sure the number that the user is using is an integer this way:

num = Integer(gets.chomp)

but you have to create a way to catch the error in case the user input otherwise like a char, or string so; it is must better to use:

num = gets.chomp.to_i

In case the user put another type of data, num will be equal to 0 like you can see in this test example:

puts "give me a number:"
num = gets.chomp.to_i
if num >3
 puts "#{num} es mayor a 3 "
else 
 puts "#{num} es menor a 3 o 3"
end

This a example of the interaction with that script:

give me a number:
 sggd
0 es menor a 3 o 3
nil

I hope this clarify better your point.