// declare a slice - similar to an array, but length is unspecified
var a []int
// declare and initialize a slice (backed by the array given implicitly)
var a = []int {1, 2, 3, 4}
// shorthand
a := []int{1, 2, 3, 4}
// ["a", "b", "c"]
chars := []string{0:"a", 2:"c", 1: "b"}

// creates a slice (view of the array) from index lo to hi-1
var b = a[lo:hi]
// slice from index 1 to 3
var b = a[1:4]
// missing low index implies 0
var b = a[:3]
// missing high index implies len(a)
var b = a[3:]
// append items to slice a
a =  append(a,17,3)
// concatenate slices a and b
c := append(a,b...)

// create a slice with make
a = make([]byte, 5, 5)    // first arg length, second capacity
a = make([]byte, 5)    // capacity is optional

// create a slice from an array
x := [3]string{"Лайка", "Белка", "Стрелка"}
s := x[:] // a slice referencing the storage of x