Sha256: 88afef3ca950729c73a6b2bfba5c80e31c96f1bb89bbffb2b0915c2eaea84697
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Size: 1023 Bytes
Versions: 115
Compression:
Stored size: 1023 Bytes
Contents
# encoding: utf-8
require 'open_classes/object'
require 'open_classes/module'
require 'open_classes/array/together_helper'
# Array
class Array
include TogetherHelper
# Arrays bulk first.
#
# together_first has alias :tfirst
#
# no args case
# lists = [[*1..5], [*6..10]]
# ret = lists.together_first
# print ret # => [1, 6]
#
# has args 2 case
# lists = [[*1..5], [*6..10]]
# ret = lists.together_first 2
# print ret # => [[1, 2], [6, 7]]
#
# has args 0 case
# lists = [[*1..5], [*6..10]]
# ret = lists.together_first 0
# print ret # => [[], []]
#
# has args over size case
# lists = [[*1..5], [*6..10]]
# ret = lists.together_first 6
# print ret # => [[*1..5], [*6..10]]
def together_first(index = nil)
if_not_contain_array_rails_type_error
each_return = index == 0 ? '[]' : index.nil? ? 'list.first' : 'list.first(index)'
reduce([]) { |ret, list|ret << eval(each_return, binding) }
end
alias_method :tfirst, :together_first
end
Version data entries
115 entries across 115 versions & 1 rubygems