Quick demo/reminder of lexical closures (in Go)

lexical_closure.go

// You can edit this code!
// Click here and start typing.
package main

import "fmt"

func main() {
	fmt.Println("Hello, 世界")
	f := who()
	g := who()
	fmt.Println(f("DIck"))
	fmt.Println(f("Wad"))
	fmt.Println(f("twat"))
	fmt.Println(g("fuck"))
	fmt.Println(g("wad"))
}

func who() func(string) string {
	var noun string
	return func(name string) string {
		noun += name
		return noun
	}
}