Remove last item from array

Question

Here’s my code:

var arr = [1,0,2];     

                        

arr.slice(-1); 

Can anyone tell me how to remove the last item from the array? 

Answer 1

There is a difference between the splice() and slice() method: 

splice() : It removes adds/removes items from an array. splice() method returns the removed items. It also changes the original array which reflects the change(removed item in your case). 

Use this code snippet:  splice(startPosition, deleteCount)

array.splice(-1,1)

Note: if you don’t specify the delete count, it’ll remove the element till the end of the array. 

Slice() :  it returns the selected elements in an array. it doesn’t change the original array so the change (removed item in your case) will not be reflected.

If you want to learn more about Java, then go through this Java tutorial by Intellipaat for more insights.