The values method of the enumerated type returns an orderedarray of the different values of that type.
该枚举类型的values方法返回这种类型的不同值的有序数组。
2
Thus with a little planning it's possible for the orderedarray and the heap array to share the same space.
因此，只要稍微计划一下，有序数组和堆数组就可以共同使用一块存储空间。
3
For that effect, JSON defines the following main data structures: number, string, Boolean (true and false), array (an ordered sequence of values), object (collection of key value pairs), and null.