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Ruby

Posted by kj2
kj2
5,933 Points

SImple Ruby Program

Im trying to run this simple program to practice Ruby but I keep getting an error, I dont understand why, any help would be great

code below..running it in workspace

print "What is your age?"
age = gets.chomp

if age >18 
    print " You are old enough to play"

 elsif age <18 
    print " you are too young"

else print" you did not give a number"

end

EDIT: I edited your code so it highlights. Look what i did to achieve this effect by press EDIT. -Aurelian

Aurelian Spodarec
Aurelian Spodarec
7,369 Points

Hi, does it tell you on what line did you get an error?

kj2
kj2
5,933 Points

Thanks for editing like that, I didn't know how to do that.

I get this error

methods.rb:4:in >': comparison of String with 18 failed (ArgumentError) from methods.rb:4:in<main>'

1 Answer

Maciej Czuchnowski
Maciej Czuchnowski
36,441 Points

Try this:

age = gets.chomp.to_i

This will convert the string you're reading into an integer, which allows legal comparisons with other integers.

Aurelian Spodarec
Aurelian Spodarec
7,369 Points

Oh i think i remember it now. Its basically if you want to get an number , you need to always put " .to_i " right?

Maciej Czuchnowski
Maciej Czuchnowski
36,441 Points

Yeah, this goes through the string and takes and interprets all numbers until it encounters a non-number, at which point it returns the number it got until this point.

kj2
kj2
5,933 Points

That worked! thanks!