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Ruby Ruby Foundations Methods Instance Methods

SY LOC
SY LOC
3,233 Points
Posted by SY LOC
SY LOC
3,233 Points

placement

curious if someone could explain how this method works. 'hello("James", "Mike The Frog")' always have to be at the end. 

def hello(name1, name2)
  puts "Hello #{name1}"
  puts "Hello #{name2}"
end
hello("James", "Mike The Frog")

If I put 'hello("James", "Mike The Frog")' after the first line, it wouldn't work. Why is that?

def hello(name1, name2)
hello("James", "Mike The Frog")
  puts "Hello #{name1}"
  puts "Hello #{name2}"
end

1 Answer

notf0und
notf0und
11,940 Points

With

hello("James", "Mike The Frog")

you're calling the hello method. The reason is doesn't work in your second piece of code is because it has no place inside the definition of your method.

So:

# Start to define the hello method, setting it to accept input variables.
def hello(name1, name2)
# Define what happens when the hello method is called with two variables, name1 and name2.
  puts "Hello #{name1}"
  puts "Hello #{name2}"
end
# Ends the definition. After this, other code is no longer a part of the hello method.

# Calls the hello method with the two variables, and looks inside for what to do, which is to puts "Hello <name>" to each variable.
hello("James", "Mike The Frog")
SY LOC
SY LOC
3,233 Points
SY LOC
SY LOC
3,233 Points

Got it. Thank you!

notf0und
notf0und
11,940 Points

No problem!