Module: Useful::RubyExtensions::Array

Included in:
Array
Defined in:
lib/useful/ruby_extensions/array.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(klass) ⇒ Object 



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# File 'lib/useful/ruby_extensions/array.rb', line 7

def self.included(klass)
  klass.extend(ClassMethods) if klass.kind_of?(Class)
end

Instance Method Details

#groups(size = 1) ⇒ Object Also known as: /, chunks

split into an array of sized-arrays



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# File 'lib/useful/ruby_extensions/array.rb', line 31

def groups(size=1)
  return [] if size <= 0
  n,r = self.size.divmod(size)
  grps = (0..(n-1)).collect{|i| self[i*size,size]}
  r > 0 ? grps << self[-r,r] : grps
end

#merge(an_a) ⇒ Object

returns a new array, containing the contents of an_a with the contents of this array, removing duplicates



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# File 'lib/useful/ruby_extensions/array.rb', line 22

def merge(an_a)
  self.class.merge(self.dup, an_a)
end

#merge!(an_a) ⇒ Object

adds the contents of an_a to this array, removing duplicates (inline version of #merge)



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# File 'lib/useful/ruby_extensions/array.rb', line 26

def merge!(an_a)
  self.class.merge(self, an_a)
end