Contents

require 'facet/array/store'
class Array

  # Modifies #[] to accept an Array of indexes.
  #
  #   require 'facet/array/[[]]'
  #
  #   a = ['a','b','c','d','e','f']
  #
  #   a[[1]]      #=> ['b']
  #   a[[1,1]]    #=> ['b','b']
  #   a[[1,-1]]   #=> ['b','f']
  #   a[[0,2,4]]  #=> ['a','c','e']
  #
  def [](*args)
    return values_at(*args.at(0)) if Array === args.at(0)
    return slice(*args)
  end

  # Modifies #[]= to accept an Array of indexes for assignment.
  #
  #   require 'facet/array/[[]]'
  #
  #   a = ['a','b','c','d']
  #
  #   a[[1]] = 'x'             #=> ['x']
  #   a                        #=> ['a','x','c','d']
  #
  #   a[[1,-1]] = ['m','n']    #=> ['m','n']
  #   a                        #=> ['a','m','c','n']
  #
  def []=(*args)
    if Array === args.at(0)
      idx = args.shift
      idx.each{ |i| store(i,args[i]) }
      return values_at( *idx )
    else
      return store(*args)
    end
  end

end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
facets-0.6.3	lib/facet/array/[[]].rb