Simple examples non intrisic golang

main.go

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package main

import "fmt"

func main() {
	a := []string{"foo", "bar", "baz", "zas"}
	fmt.Println(len(a), a) // 4 [foo bar baz zas]

	n := len(a) - 1
	last, a := a[n], a[:n]
	fmt.Println(last, a) // zas [foo bar baz]

	n = len(a) - 1
	a, last = a[:n], a[n]
	fmt.Println(last, a) // baz [foo bar]
}