Data collections
Previously you have seen structs and variants, which contain a fixed amount of data. East provides three data structures containing an arbitary number of values – arrays, sets and dictionaries.
Arrays are a simple list of values of the same type, in a given order.
Sets contain an arbitrary number of distinct "keys" of the same type. The keys are always sorted by their natural ordering in East.
Dictionaries contain an arbitrary number of distinct keys and associated values. The entries are always sorted by the natural ordering of the keys in East.
East provides the ability to easily filter, transform, reduce or aggregate data collections, which will be covered in the later segments.