101 Assessment study cards

Question 1

What is the output of the following?

str = “a string”

def str
– “a method”
end

p str

Answer 1

p str
=> ‘a string’

this is because the variable initialized inside of the method is not available outside the method. The str variable outside of the method is what is printed out.

Question 2

Does this method have a problem?array = [1, 2, 3]

array.each do |element|
a = element
end

puts a

Answer 2

Yes a is defined inside the block without being assigned a value outside first. Throws an error message.