AngularJS Words Filter

words.js

angular.module('app').filter("words", function() {
  return function(input, words) {
    if (isNaN(words)) return input;
    if (words<=0) return '';
    if(input) {
      var inputWords = input.split(/\s+/);
      if (inputWords.length > words) {
        input = inputWords.slice(0, words).join(' ') + '...';
      }
    }
    return input;
  };
});