Go language slice length and capacity

Package Mainimport "FMT" Func main () {s: = []int{2, 3, 5, 7, one, 13}printslice (s)//Slice the Slice to give it zero length. s = S[:0]printslice (s)//Extend its length.fmt.Println (s[:5]) s = s[:4]printslice (s)//Drop its first of VALUES.S = S[2:]p Rintslice (s)}func Printslice (s []int) {fmt. Printf ("len=%d cap=%d%v\n", Len (s), Cap (s), s)}

　　

Output

Len=6 cap=6 [2 3 5 7 13]len=0 cap=6 [][2 3 5 7 11]len=4 cap=6 [2 3 5 7]len=2 cap=4 [5 7]

　　

The first re-assignment of s to the underlying array of 0 the   second s or 0 points  to the third point 2 everything starts with the one pointing to the index start slice of the cap that is the current slice of 0 pointing to the start to end

　　

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Go language slice length and capacity