code: function words(string, pattern, guard) {
          string = toString(string);
          pattern = guard ? undefined : pattern;
          if (pattern === undefined) {
            pattern = reHasComplexWord.test(string) ? reComplexWord : reBasicWord;
          }
          return string.match(pattern) || [];
        }
docs: Splits `string` into an array of its words.
  
  @static
  @memberOf _
  @category String
  @param {string} [string=''] The string to inspect.
  @param {RegExp|string} [pattern] The pattern to match words.
  @param- {Object} [guard] Enables use as an iteratee for functions like `_.map`.
  @returns {Array} Returns the words of `string`.
  @example
  
  _.words('fred, barney, & pebbles');
  // => ['fred', 'barney', 'pebbles']
  
  _.words('fred, barney, & pebbles', /[^, ]+/g);
  // => ['fred', 'barney', '&', 'pebbles']