// constants are used to give names to literals
// There is no way to declare that a value is immutable
// Use constants for hard-coded package level variables

// constants can be typed or untyped
// leave them untyped for flexibility (can use an untyped int constant in a func that takes a float etc)
// or hardcode them if needed

package main

import "fmt"

const x int = 10

const (
	idKey   = "id"
	nameKey = "name"
)

const z = 20 * 10

func main() {
	const y = "hello"

	fmt.Println(x)
	fmt.Println(y)

	x = x + 1
	y = "bye"

	fmt.Println(x)
	fmt.Println(y)
}