Question

How to shift elements of a slice to the left by one position in Go

Answer 1

package main

import "fmt"

func shiftLeft(arr []int) []int {
    if len(arr) == 0 {
        return arr
    }
    return append(arr[1:], arr[0]) // optional: move first to the end
}

func main() {
    arr := []int{0, 1, 2, 3, 4, 5}
    fmt.Println("Original:", arr)

    arr = shiftLeft(arr)
    fmt.Println("Shifted: ", arr)
}


/*
run:

Original: [0 1 2 3 4 5]
Shifted:  [1 2 3 4 5 0]

*/

 

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