go-learning/tour_of_go/l4/slices-cont.go

34 lines
423 B
Go

package main
import "fmt"
func printSlice(s []int) {
fmt.Printf("len=%d cap=%d %v\n", len(s), cap(s), s)
}
func main() {
s := []int{2, 3, 5, 7, 11, 13}
printSlice(s)
s = s[:0]
printSlice(s)
s = s[:4]
printSlice(s)
s = s[2:]
printSlice(s)
// Extend beyond capacity
// s = s[:10]
// printSlice(s)
// Zero value of a slice is nil
var ns []int
printSlice(ns)
if ns == nil {
fmt.Println("nil!!")
}
}