code: function values(hash) {
      if (!isHash(hash)) {
          throw new TypeError();
      }
      var keys = Object.keys(hash), ret = [];
      for (var i = 0, len = keys.length; i < len; ++i) {
          ret.push(hash[keys[i]]);
      }
      return ret;
  }
docs: Returns the values of a hash.
  
  ```
  var obj = {a : "b", c : "d", e : "f"};
  comb(obj).values(); //["b", "d", "f"]
  
  comb.hash.values(obj); //["b", "d", "f"]
  
  ```
  
  @param {Object} hash the object to retrieve the values of.
  @return {Array} array of values.
  @memberOf comb.hash