
##   
### Overview
In this shot, we will learn to remove the last item from a slice in Golang.

**Slice** is a dynamically sized array in Golang:
* It can grow and shrink when we add or remove elements from it.
* Can only contain similar types of elements.
* Declaring a slice is the same as an array but without a size.

**Example:**

```_n_ := []int{1, 2, 3, 4, 5, 6, 7}```

##   
### Example
We will remove the last item from a given slice:

`{1,2,3,4,5,6,7}`

The last item is $7$ here.

We will follow the below approach to remove the last item:
* Calculate the length of the slice
* Re-slice the original slice to last before element
 

package main

//import format package
import(
  "fmt"
)

//main program
func main(){

  //Declare slice
  n := []int{1, 2, 3, 4, 5, 6, 7}

  //check if slice is not empty
  if len(n) > 0 {

    //Re-slice to last before element
    n = n[:len(n)-1]
  }

  //display slice where last element is removed
  fmt.Println(n)


}

## 
### Explanation


* **Line 9**: We have the `main()` function that is the start of the program execution.
* **Line 12**: We declare and initialize slice `n`.
* **Line 15**: We check for a non-empty slice, otherwise if we try to reslice an empty slice it will throw an error.
* **Line 18**: We reslice the original slice to the second last element. We find out the second last element by subtracting `1` from the length of the slice.
* **Line 22**: We display the slice after removing the last element.

How to remove the last item from a slice in Golang

Overview

Example

Code

Explanation