How do I collect a String and use it in an if?

Question

puts "Tem dinheiro? s/n"
x = gets.chomp

if x = s
  puts "Vou viajar"
else
  puts "Não vai ser dessa vez"
end

Answer 1

First, you have to organize the code, not just throw everything anyway.

Second, to compare a variable with a text is only possible if this text is expressed in its literal form, that is, it must be in quotation marks. Like a quote in a text.

Third, in the if is assigning a value to the variable with the =, to compare and obtain a true or false the correct operator is ==.

Thus:

puts "Tem dinheiro? s/n"
x = gets.chomp
if x == "s"
    puts "Vou viajar"
else
    puts "Não vai ser dessa vez"
end

Behold working in the ideone. And in the repl it.. Also put on the Github for future reference.

I suggest taking a course on programming before trying to write code randomly.