Class: Array

Inherits:

Object

• Object
• Array

Defined in:

lib/robot_array.rb

Instance Method Summary

• #dupes? ⇒ Boolean

  Returns true if this array has duplicates in it.

• #dupes_by?(&block) ⇒ Boolean

  Returns true if this array has duplicates in it, using the test passed in for uniqueness rather than the built in ruby test for equality.

Instance Method Details

#dupes? ⇒ Boolean

Returns true if this array has duplicates in it

["a", "b", "c", "a"].dupes?
# => true

Returns:

• (Boolean)

# File 'lib/robot_array.rb', line 7

def dupes?
  self.uniq.length != self.length
end

#dupes_by?(&block) ⇒ Boolean

Returns true if this array has duplicates in it, using the test passed in for uniqueness rather than the built in ruby test for equality.

["a", "b", "c", "A"].dupes_by?(&:downcase)
# => true

Returns:

• (Boolean)

# File 'lib/robot_array.rb', line 18

def dupes_by?(&block)
  self.uniq_by(&block).length != self.length
end