Overview

Below are some of the ways of declaring multiple constant together

Declaring multiple const together with different value and type

const (
a = "circle"
b = 1
c float = 4.65
)

The declaration can be typed or untyped. Refer to this article to understand the difference between typed and untyped constant – /typed-untyped-constant-golang/

• a is a untyped declaration. It will be of string type with value “circle”

• b is also a untyped declaration. It will be of int type with value 1

• c is a typed declaration. It will be of float64 type with value as 4.65

Declaring multiple const together with same value and type

const (
a string = "circle"
b
)

When constant type and value is not provided, then it gets its type and value from previous declaration

• a will be of string type with value “circle”

• b will be of type string and value will be “circle”

Combining above two

const (
a string "circle"
b
c = 1
)

• a will be of string type with value “circle”

• b will be of type string and value will be “circle”

• c will be of int type with value 1

Multiple declaration in single line

const a, b = 1, 2
const c, d int = 3, 4

Declaration again can be typed or untyped

• a will be of int type with value 1

• b will be of int type with value 2

• c will be of int type with value 3

• d will be of int type with value 4