text:     /**
       * Determines whether all elements of an observable sequence satisfy a condition.
       * 
       * 1 - res = source.all(function (value) { return value.length > 3; });
       * @memberOf Observable#
       * @param {Function} [predicate] A function to test each element for a condition.
       * @param {Any} [thisArg] Object to use as this when executing callback.
       * @returns {Observable} An observable sequence containing a single element determining whether all elements in the source sequence pass the test in the specified predicate.
       */
      observableProto.every = observableProto.all = function (predicate, thisArg) {
          return this.where(function (v) {
              return !predicate(v);
          }, thisArg).any().select(function (b) {
              return !b;
          });
      };
  