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holdenhinkle/grade_school.rb

Last active January 31, 2016 01:33
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Grade School
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grade_school.rb
class School
attr_accessor :grades
def initialize
@grades = {}
end
def to_h
grades.map { |grade, name| grades[grade] = name.sort }
grades.sort.to_h
end
def add(name, grade)
grades.has_key?(grade) ? self.grades[grade] << name : self.grades[grade] = [name]
end
def grade(grade)
grades[grade].nil? ? [] : grades[grade]
end
end
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