- Get practice with common enumerable methods
In this lab you'll be learning how to iterate through an array and output the
results in different ways. Write your code in the conference_badges.rb file
and run the test suite using the learn test command.
You're hosting a conference and need to print badges for the speakers. Each
badge should read: "Hello, my name is _____." Write a badge_maker method
that, when provided a person's name, will create and return this message. E.g.:
badge_maker("Arel")
# => "Hello, my name is Arel."Once the list of speakers for your conference has been finalized, you'll want to get the badges printed for all of your speakers.
Write a #batch_badge_creator method that takes an array of names as an argument
and returns an array of badge messages.
batch_badge_creator(["Arel", "Carol"])
# => ["Hello, my name is Arel.", "Hello, my name is Carol."]You just realized that you also need to give each speaker a room assignment.
Write a method called #assign_rooms that takes the list of speakers and
assigns each speaker to a room. Make sure that each room only has one speaker.
You have rooms 1-7.
Return an array of strings representing room assignments in the form of: "Hello, _____! You'll be assigned to room _____!"
assign_rooms(["Arel", "Carol"])
# => ["Hello, Arel! You'll be assigned to room 1!", "Hello, Carol! You'll be assigned to room 2!"]Hint: Think about how you will assign a room number to each person. Array
items are indexed, meaning that you can access each element by its index number.
When you are iterating through an array, you can keep track of the index number
of the current iteration using an enumerator method called
each_with_index
or a closely related method called
.with_index.
Hint: Remember that the return value of the #each (or #each_with_index)
method is the original array that you are calling it on. What we need to do here
is iterate through the array containing the list of speakers, create the room
assignment strings for each speaker, and return a new array containing the
messages. There is an enumerator method that does just that. Google or use
Ruby Docs to find the
correct method.
Now you have to tell the printer what to print. Create a method called
#printer that will output first the results of the #batch_badge_creator
method, and then the output of the #assign_rooms method, to the screen.
printer(["Arel", "Carol"])
# Hello, my name is Arel.
# Hello, my name is Carol.
# Hello, Arel! You'll be assigned to room 1!
# Hello, Carol! You'll be assigned to room 2!Hint: Remember that methods can call other methods. If the return value of
#assign_rooms is an array of room assignments, how can you print out each
assignment? You'll need to iterate over your array of room assignments in order
to puts out each individual assignment.