String包含char和返回字符串Haskell

Question

让我们说:

let someString = "It is a String"

如何返回包含某个字符的单词？

Answer 1

你可以结合words,filter并elem做到这一点.

像这样的东西 - 没有测试这是否确实有效,但它应该不远:

wordsContaining :: String -> Char -> [String]
wordsContaining c = filter (elem c) . words