Slices / Optimize by pre-allocating slice / Essential Go
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package main
import (
"fmt"
)
func main() {
s := []byte("123456")
var d []byte
fmt.Printf("d: %p, len: %d, cap: %d\n", d, len(d), cap(d))
d = append(d, s...)
fmt.Printf("d: %p, len: %d, cap: %d\n", d, len(d), cap(d))
d = append(d, s...)
fmt.Printf("d: %p, len: %d, cap: %d\n", d, len(d), cap(d))
d = append(d, s...)
fmt.Printf("d: %p, len: %d, cap: %d\n", d, len(d), cap(d))
}
Go
INFO