ruby-uebungen/Assignment_024/solution/readme.md

# Lösung: Map



```ruby
def leeter(array)
  array.map do |e|
    e.gsub(/[aeiot]/, { \
    'a' => '4', \
    'e' => '3', \
    'i' => '1', \
    'o' => '0', \
    't' => '7'})
  end
end

test = %w{ Hello world }
puts leeter(test)
```