Learning Go Programming

The struct type

The last type discussed in this chapter is Go's struct. It is a composite type that serves as a container for other named types known as fields. The following code snippet shows several variables declared as structs:

var( 
   empty struct{} 
   car struct{make, model string} 
   currency struct{name, country string; code int} 
   node struct{ 
         edges []string 
         weight int 
   } 
   person struct{ 
         name string 
         address struct{ 
               street string 
               city, state string 
               postal string 
         } 
   } 
) 

golang.fyi/ch07/structtypes.go

Note that the struct type has the following general format:

struct{<field declaration set>}

The struct type is constructed by specifying the keyword struct followed by a set of field declarations enclosed within curly brackets. In its most common form, a field ...