module Enumerable

Public Instance Methods

argfind() { |e| ... } click to toggle source
# File lib/ditzstr/util.rb, line 26
def argfind
  each { |e| x = yield(e); return x if x }
  nil
end
count_of(&b) click to toggle source
# File lib/ditzstr/util.rb, line 6
def count_of(&b); select(&b).size end
group_by() { |element| ... } click to toggle source
# File lib/ditzstr/util.rb, line 31
def group_by
  inject({}) do |groups, element|
    (groups[yield(element)] ||= []) << element
    groups
  end
end
map_with_index() { |e, i| ... } click to toggle source
# File lib/ditzstr/util.rb, line 20
def map_with_index # sigh...
  ret = []
  each_with_index { |e, i| ret << yield(e, i) }
  ret
end
max_of(&b) click to toggle source
# File lib/ditzstr/util.rb, line 7
def max_of(&b); map(&b).max end
min_of(&b) click to toggle source
# File lib/ditzstr/util.rb, line 8
def min_of(&b); map(&b).min end