Sha256: d108d732176f199029b04d5b03b6d7d174e7fa3a40d2c8988f3ecc88d844bf13
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Size: 909 Bytes
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Contents
module Enumerable # Remove this as soon as it is integrated into ActiveSupport.
# Associates keys with values and returns a Hash.
#
# If you have an enumerable of keys and want to associate them with values,
# pass a block that returns a value for the key:
#
# [1, 2, 3].associate { |i| i ** 2 }
# # => { 1 => 1, 2 => 4, 3 => 9 }
#
# %w( tender love ).associate &:capitalize
# # => {"tender"=>"Tender", "love"=>"Love"}
#
# If you have an enumerable key/value pairs and want to associate them,
# omit the block and you'll get a hash in return:
#
# [[1, 2], [3, 4]].associate
# # => { 1 => 2, 3 => 4 }
def associate(mapping = {})
if block_given?
each_with_object(mapping) do |key, object|
object[key] = yield(key)
end
else
each_with_object(mapping) do |(key, value), object|
object[key] = value
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems