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Go Constants

A constant const contains data which is not changed. This data can only be of type boolean, number (integer, float or complex) or string.

Syntax:

Example:

The type specifier [type] is optional, the compiler can implicitly derive the type from the value.

Explicit Typing Example:

Implicit Typing Example:

Go Constant Example

package main
import "fmt"
func main() {
   const HEIGHT int = 100
   const WIDTH int = 200
   var area int
   area = HEIGHT * WIDTH
   fmt.Printf("value of area : %d", area)
}

Output:

value of area : 20000

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