19. User Defined Types
We can defined our own type based on existing Go in-build types. We have declared
person
as user defined type based on struct. We are not limited to struct. We can define our type based on any other type as base type.We can declare our type using
type
keyword. It generally takes form oftype type_name base_type
main.go
type marks int
type liters float64
var m1 marks
m1 = 20
var l1 liters
l1 = 3.4
marks
and liters
are types based on int
and float64
respectively.Go defined types most often use structs as their underlying types, but they can also be based on ints, strings, booleans, or any other type. - Head First Go
Last modified 3yr ago