arrays - 删除另一个数组中存在的数组元素

有单词列表和禁止单词列表。我想浏览一下单词表，并删除所有被禁止的单词。这就是我最终要做的(请注意catched bool 值):

puts "Give input text:"
text = gets.chomp
puts "Give redacted word:"
redacted = gets.chomp

words = text.split(" ")
redacted = redacted.split(" ")
catched = false

words.each do |word|
  redacted.each do |redacted_word|
    if word == redacted_word
        catched = true
        print "REDACTED "
        break
    end
  end
    if catched == true
        catched = false
    else
        print word + " "
    end
end

有什么适当/有效的方法吗？

最佳答案

您可以使用 .reject 排除redacted数组中存在的所有禁止的单词:

words.reject {|w| redacted.include? w}

Demo

如果要获取words数组中存在的禁止单词的列表，则可以使用 .select :

words.select {|w| redacted.include? w}

Demo