appending to a slice in go
package main
import (
"fmt"
)
func main() {
strs := make([]string, 3)
strs[0] = "hello"
strs[1] = "world"
strs[2] = "doo u "
//extends slice via built in append function
strs = append(strs, "fooo")
strs = append(strs, "dooo")
fmt.Println(strs[3])
fmt.Println(strs[4])
}