Ruby on rails 如何删除句子中的单词数组？

我有一系列的停止词：

myArray=[，“a”，“ago”，“allo”，“am”，“an”，“and”，“ani”，“ar”，“are”，“not”，“arent”，“as”，“ask”，“at”，“did”，“not”，“do”，“doe”，“will”，“be”，“best”，“better”]

我想从句子中删除匹配项：

sentence.split.delete_if{|x| array.include?(x.downcase)}.join(' ')

 => "something hello" 

str='A something and hello'

因此，它变成：

“你好”

1。我如何用ruby实现这一点？

2.如何对字符数组执行此操作（删除所有匹配字符）

以下是字符数组：

special = ["(",")","@","#","^"]

sentence.split.delete_if{|x| array.include?(x.downcase) || special.include?(x) }.join(' ')

[“（“，”），“@”，“#”，“^”]

在比较之前，您可能希望将所有单词降格，以去掉句首的“A”：

sentence.split.delete_if{|x| array.include?(x.downcase)}.join(' ')

 => "something hello" 

如果有字符串数组，则更容易：

(sentence.split - array).join(' ')
=> "A something hello"    #  but note that this doesn't catch the "A"

要同时删除特殊字符，请执行以下操作：

special = ["(",")","@","#","^"]

sentence.split.delete_if{|x| array.include?(x.downcase) || special.include?(x) }.join(' ')

删除单词或短语的另一种方法是：

array.each do |phrase|
  sentence.gsub!(/#{phrase}/,'')
end

我的解决方案：

stop_words = ["","a","ago","also","am","an","and","ani","ar","aren't","arent","as","ask","at","did","didn't","didnt","do","doe","would","be","been","best","better"]
output = %w(A something and hello) - stop_words

---

Tilo答案的一行变体，干净且不区分大小写（尽管它返回所有小写输出，这可能不适合所有用途）：

---

在第二种情况下，您希望输出什么？谢谢！对于字符数组也有类似的方法吗？（删除了任何匹配的字符）@Tilo如果我不想删除像“谢谢”这样的单词，我在数组中的是[“谢谢”，…]我添加了一个示例，说明如何执行此操作-请参见我的回答结尾，但输入也应该是字符串..输出应该是另一个字符串，你应该在你的答案周围放一些描述性的文字来解释它在做什么。

(sentence.downcase.split - array).join(' ')