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Contents
== Array#product
require 'facets/array/product'
single argument
r = [1,2,3].product([4,5,6])
x = [[1, 4],[1, 5],[1, 6],[2, 4],[2, 5],[2, 6],[3, 4],[3, 5],[3, 6]]
r.assert == x
multiple arguments
a = %w|a b|
b = %w|a x|
c = %w|x y|
r = a.product(b, c)
x = [ ["a", "a", "x"],
["a", "a", "y"],
["a", "x", "x"],
["a", "x", "y"],
["b", "a", "x"],
["b", "a", "y"],
["b", "x", "x"],
["b", "x", "y"] ]
r.assert == x
Version data entries
7 entries across 7 versions & 1 rubygems