'+' can't convert Fixnum into String (TypeError)

ruby

Solution

Ruby (unlike some other languages) does not cast objects to strings when they are operands in `String#+` method. Either cast to string manually:

puts 'Yeah ' + favenum.to_s + ' is nice enough but ' + better.to_s + ' is bigger and better by far!'

or use string interpolation (note the double quotes):

puts "Yeah #{favenum} is nice enough but #{better} is bigger and better by far!"

Problem

I've hit upon a 'can't convert Fixnum into String (TypeError)' error and whilst it seems simple enough I'm unsure about how to get around it. I thought my logic was sound - convert the entered string variable to an integer and then carry out the basic operation - but apparently I'm missing some key bit of information. ``` puts 'What is your favourite number?' favenum = gets.chomp better = favenum.to_i + 1 puts 'Yeah '+favenum+' is nice enough but '+better+' is bigger and better by far! Think on.' ``` Have tried searching for an answer but examples of the same error out there are way beyond my rudimentary ruby skills at present.

Original source