Declare slice or make slice?

Question

In Go, what is the difference between var s []int and s := make([]int, 0)?

I find that both works, but which one is better?

Answer 1

A bit more completely (one more argument in make) example:

slice := make([]int, 2, 5)
fmt.Printf("length:  %d - capacity %d - content:  %d", len(slice), cap(slice), slice)

Out:

length:  2 - capacity 5 - content:  [0 0]

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Or with dynamic type of slice:

slice := make([]interface{}, 2, 5)
fmt.Printf("length:  %d - capacity %d - content:  %d", len(slice), cap(slice), slice)

Out:

length:  2 - capacity 5 - content:  [ ]