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Size: 372 Bytes
Versions: 6
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Stored size: 372 Bytes
Contents
module Enumerable
# Same as #collect but with an iteration counter.
#
# a = [1,2,3].collect_with_index { |e,i| e*i }
# a #=> [0,2,6]
#
# CREDIT: Gavin Sinclair
def map_with_index
r = []
each_index do |i|
r << yield(self[i], i)
end
r
end
# Alias for map_with_index.
alias_method :collect_with_index, :map_with_index
end
Version data entries
6 entries across 6 versions & 1 rubygems