Sha256: 3511327b3d8b08f3257dbe82f57a4b746da3960fe16004e16abf1fbff0f30b18
Contents?: true
Size: 1003 Bytes
Versions: 7
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Stored size: 1003 Bytes
Contents
# -*- coding: utf-8 -*-
module Enumerable
# @example
# enum.select_while {|obj| block }
# => array
#
# @return [Array<Object>] the leading elements for which block is truthy.
#
def select_while
arr = []
each{|item| yield(item) ? (arr << item) : break}
return arr
end
# @example
# enum.select_until {|obj| block }
# => array
#
# @return [Array<Object>] the leading elements for which block is falsey.
#
def select_until
arr = []
each{|item| yield(item) ? break : (arr << item)}
return arr
end
# Calls block with two arguments, the item and its index, for each item in enum.
#
# @example
# enum.select_with_index {|obj,i| block }
# => array
#
# @return [Array<Object> the leading elements for which block is truthy.
#
def select_with_index
index = 0
arr = []
each{|item|
if yield(item,index)
arr << item
index+=1
else
break
end
}
return arr
end
end
Version data entries
7 entries across 7 versions & 1 rubygems