/Go/How to remove element from backing array slice golang

How to remove element from backing array slice golang

package main

import (
    "fmt"
)

func RemoveIndex(s []int, index int) []int {
    ret := make([]int, 0)
    ret = append(ret, s[:index]...)
    return append(ret, s[index+1:]...)
}

func main() {
    all := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
    fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 8 9]
    removeIndex := RemoveIndex(all, 5)

    fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 8 9]
    fmt.Println("removeIndex: ", removeIndex) //[0 1 2 3 4 6 7 8 9]

    removeIndex[0] = 999
    fmt.Println("all: ", all) //[0 1 2 3 4 5 6 7 9 9]
    fmt.Println("removeIndex: ", removeIndex) //[999 1 2 3 4 6 7 8 9]
}

Source: stackoverflow.com

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