ontext) ->
  if nativeReduce and obj.reduce is nativeReduce
    iterator = _.bind iterator, context if context
    return obj.reduce iterator, memo
  _.each obj, (value, index, list) ->
    memo = iterator.call context, memo, value, index, list
  memo


# The right-associative version of **reduce**, also known as **foldr**. Uses
# JavaScript 1.8's version of **reduceRight**, if available.
_.reduceRight = (obj, iterator, memo, context) ->
  if nativeReduceRight and obj.reduceRight is nativeReduceRight
    it