title: How can I search for multiple items in a "any" function: haskell
body: <p>Right now I have this piece of code\</p>
  <pre><code>filter (any (=='a')) [String]
  -- [String] is just any string list
  </code></pre>
  <p>if you can't tell this just filters for anything in the string containing 'a'. what I want to know is how can I search for multiple characters? if I try making a string/[char] then I get an error because of the inputs that the any function takes. How can I get around this, because for my purposes I will always have a unknown amount of chars, so I need a way to feed multiple characters into this function. Thank you.</p>