Sha256: 252453456330fe05130b91f8d5a4713bf6fd53dd56f2e30fa9e980e5d2d5948a
Contents?: true
Size: 717 Bytes
Versions: 11
Compression:
Stored size: 717 Bytes
Contents
class Array
# Zip <tt>self</tt> with <tt>other</tt>, combining the elements
# with the provided block or symbol.
# The resulting array will be as long as the shorter of
# the two arrays.
# [1,2,3].zip_with([6,5,4], :+)
# #=> [7, 7, 7]
# %w(a b).zip_with(%w(c d), :+)
# #=> ["ac", "bd"]
#
# For more complex combinations, a block can be provided:
#
# [1,2,3].zip_with([6,5,4]) { |a,b| 3*a+2*b }
# #=> [15, 16, 17]
def zip_with(other, op=nil)
return [] if self.empty? || other.empty?
clipped = self[0..other.length-1]
zipped = clipped.zip(other)
if op
zipped.map { |a, b| a.send(op, b) }
else
zipped.map { |a, b| yield(a, b) }
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems