code: function objReduceRight(callback/*, initialValue = UNDEFINED*/) {
      const args = Array.prototype.slice.call(arguments, 0);
      args.unshift(eachRight);
      return objReduceIterated.apply(this, args);
  }
docs: reduceRight function applied to object's and array's own properties not just indexed
  contents
  where order of reduction is right to left, ascii sorted non-indexed properties in reverse
  order, then indexed properties in reverse order
  
  @this        array or object
  @param callback function taking (prevValue, value, key, collection) and returning reduced
  value if BREAK returned then the result will be the accumulated value up to this point,
  or if BREAK(arg) is returned then the result will be arg
  //@param initialValue what to use for initial reduced value instead of array element
  @return {boolean} whether callback returned true for all keys/values