Class: Array

Inherits:
Object show all
Defined in:
lib/scruby/core_ext/array.rb,
lib/scruby/core_ext/delegator_array.rb

Direct Known Subclasses

DelegatorArray, TypedArray

Instance Method Summary collapse

Instance Method Details

#collect_with_index ⇒ Object

collect with index



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# File 'lib/scruby/core_ext/array.rb', line 3

def collect_with_index
  self.zip( (0...self.size).map ).collect{ |element, index| yield element, index }
end

#encode_floats ⇒ Object

:nodoc:



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# File 'lib/scruby/core_ext/array.rb', line 28

def encode_floats #:nodoc:
  [self.size].pack('n') + self.pack('g*') #TODO: Deprecate
end

#peel ⇒ Object 



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# File 'lib/scruby/core_ext/array.rb', line 36

def peel
  self.dup.peel! || self
end

#peel! ⇒ Object 



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# File 'lib/scruby/core_ext/array.rb', line 32

def peel!
  self.replace self.first if self.first.kind_of? Array if self.size == 1
end

#to_array ⇒ Object

Returns self



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# File 'lib/scruby/core_ext/array.rb', line 26

def to_array; self; end

#to_da ⇒ Object 



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# File 'lib/scruby/core_ext/delegator_array.rb', line 32

def to_da
  DelegatorArray.new self
end

#wrap_and_zip(*args) ⇒ Object 



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# File 'lib/scruby/core_ext/array.rb', line 19

def wrap_and_zip *args
  max  = args.map{ |a| instance_of?(Array) ? a.size : 0 }.max.max( self.size )
  args = args.collect{ |a| a.to_array.wrap_to( max ) }
  self.wrap_to( max ).zip( *args )
end

#wrap_to(size) ⇒ Object 



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# File 'lib/scruby/core_ext/array.rb', line 7

def wrap_to size
  return self if size == self.size
  self.dup.wrap_to! size
end

#wrap_to!(size) ⇒ Object 



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# File 'lib/scruby/core_ext/array.rb', line 12

def wrap_to! size
  return nil if size == self.size
  original_size = self.size
  size.times { |i| self[ i ] = self[ i % original_size ] }
  self
end