check if text contains any swear words

Script
function check(text) {

  var swearWords = ['fuck', 'bitch', 'shit', 'damn', 'cunt'];
  for (var i = 0; i < swearWords.length; i++) {
    if(text.indexOf(swearWords[i]) !== -1) {
      return 'That\'s the worst!';
    } else {
      return 'This is nice';
    }

  }

}
    
check('fuck');