ifelse_1.rb

# Before
# Metrics/MethodLength: Method has too many lines. [13/10]
def foo1(number)
  if number == 1
    'one'
  elsif number == 2
    'two'
  elsif number == 3
    'three'
  elsif number == 4
    'four'
  elsif number == 5
    'five'
  else
    'many'
  end
end

# After
DICTIONARY = {
  1 => 'one',
  2 => 'two',
  3 => 'three',
  4 => 'four',
  5 => 'five'
}.freeze

def foo2(number)
  DICTIONARY[number] || 'many'
end

DICTIONARY.fetch(number, 'many')