class Wordlist::Operators::Subtract
Lazily enumerates over every word in the first wordlist, that is not in the second wordlist.
@since 1.0.0
Public Instance Methods
each() { |word| ... }
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Enumerates over the difference between the two wordlists.
@yield [word]
The given block will be passed each word from the first wordlist, that is not in the second wordlist.
@yieldparam [String] word
A word that belongs to first wordlist, but not the second wordlist.
@return [Enumerator]
If no block is given, an Enumerator object will be returned.
@example
wordlist1 = Wordlist::Words["foo", "bar", baz", "qux"] wordlist2 = Wordlist::Words["bar", "qux"] (wordlist1 - wordlist2).each do |word| puts word end # foo # baz
@api public
# File lib/wordlist/operators/subtract.rb, line 39 def each return enum_for(__method__) unless block_given? unique_filter = UniqueFilter.new @right.each { |word| unique_filter.add(word) } @left.each do |word| unless unique_filter.include?(word) yield word end end end