如何从Golang中的Slice中删除元素

Question

fmt.Println("Enter position to delete::")
fmt.Scanln(&pos)

new_arr := make([]int, (len(arr) - 1))
k := 0
for i := 0; i < (len(arr) - 1); {
    if i != pos {
        new_arr[i] = arr[k]
        k++
        i++
    } else {
        k++
    }
}

for i := 0; i < (len(arr) - 1); i++ {
    fmt.Println(new_arr[i])
}

I am using this command to delete an element from a Slice but it is not working, please suggest.

Answer 1

Remove one element from the Slice (this is called 're-slicing'):

package main

import (
    "fmt"
)

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

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