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Versions: 4
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Contents
require 'enumerator'
module Enumerable
# Iterate through slices. If slice +steps+ is not
# given, the arity of the block is used.
#
# x = []
# [1,2,3,4].each_by{ |a,b| x << [a,b] }
# x #=> [ [1,2], [3,4] ]
#
# x = []
# [1,2,3,4,5,6].each_by(3){ |a| x << a }
# x #=> [ [1,2,3], [4,5,6] ]
#
# This is just like each_slice, except that it will check
# the arity of the block. If each_slice ever suppots this
# this method can be deprecated.
#
# CREDIT: Trans
def each_by(steps=nil, &block)
if steps
each_slice(steps, &block)
else
steps = block.arity.abs
each_slice(steps, &block)
#each_slice(steps) {|i| block.call(*i)}
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems