Question

How to remove an element from slice by value in Go

Answer 1

package main
   
import (
    "fmt"
)

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

func find(a []int, val int) int {
    for i, n := range a {
        if n == val {
            return i
        }
    }
    return -1
}

func main() {
    slice := []int{4, 6, 12, 45, 98, 77, 32, 5, 1, 99, 100}
 
    fmt.Println(slice)
    
    slice = RemoveByIndex(slice, find(slice, 77))

    fmt.Println(slice)
} 
 
    
    
  
/*
run:
   
[4 6 12 45 98 77 32 5 1 99 100]
[4 6 12 45 98 32 5 1 99 100]

*/

 

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