Class: Enumerator

Inherits:

Object

• Object
• Enumerator

Defined in:

lib/ext/enumerator.rb

Instance Method Summary

• #compact ⇒ Enumerator

  Create a #compact similar to Array.compact.

• #uniq ⇒ Enumerator

  Thanks to u/0x0dea for the lazy implementation.

Instance Method Details

#compact ⇒ Enumerator

Create a #compact similar to Array.compact.

Returns:

• (Enumerator) —

  with nils removed

# File 'lib/ext/enumerator.rb', line 5

def compact
  reject(&:nil?)
end

#uniq ⇒ Enumerator

Thanks to u/0x0dea for the lazy implementation.

Returns:

• (Enumerator) —

  only my unique elements

See Also:

• Discussion thread

Author:

• u/0x0dea

# File 'lib/ext/enumerator.rb', line 14

def uniq
  cache = Set.new

  Lazy.new(self) do |yielder, value|
    yielder << value if cache.add?(value)
  end
end