Insert Value at Start

Insert a value at the start of the list.

Examples in Go
package main

import (
	"fmt"
)

func main() {
	s := []int{1, 2, 3, 4, 5}
	s = append([]int{-99}, s...)
	fmt.Println(s)
}
Last Run  :
[-99 1 2 3 4 5]