Exported Names

In Go, names that start with a capital letter are exported from a package.

exported_names.go

package main

import "fmt"

func PublicLabel() string {
	return "exported"
}

func privateLabel() string {
	return "local"
}

func main() {
	var useExported = 
	var label string

	if useExported {
		label = PublicLabel()
	} else {
		label = privateLabel()
	}

	fmt.Println("useExported=", useExported)
	fmt.Println("label=", label)
}

package main

import "fmt"

func PublicLabel() string {
	return "exported"
}

func privateLabel() string {
	return "local"
}

func main() {
	var useExported = 
	var label string

	if useExported {
		label = PublicLabel()
	} else {
		label = privateLabel()
	}

	fmt.Println("useExported=", useExported)
	fmt.Println("label=", label)
}

exported name Exported names are visible to other packages; unexported names stay package-local.