What do the "S", "T" and "Pr" icons that appear in the "auto completion box" in Swift playground mean?

Question

Question

What do the "S", "T" and "Pr" icons that appear in the "auto completion box" in Swift playground mean? Are there other kinds?

Thanks!

Answer (for search engine indexing)

C  : Classes
Pr : Protocols
f  : Functions
S  : Structs
U  : Unions
E  : Enums
T  : Types
V  : Globals

Answer 1

These are the same abbreviations that appear in the Symbol navigator, where they are defined for you (as the attached screen shot shows):

Thus, as the table tells you, C means class, Pr means protocol, and so on.