I want to remove all the item in the array except the last item push in the array

Question

This is the example of the array

arr = [1,2,3,4,5];

I expect to have this kind of result

arr = [5];

Please read and apply the following instructions [How to ask a good question](http://stackoverflow.com/help/how-to-ask) and [How to create a Minimal, Complete, and Verifiable example](https://stackoverflow.com/help/mcve) to your question! If you improve your question, you improve your chances for us to help you! — Douwe de Haan, Apr 24 '17 at 09:53
thank you for the advice, in my next question in the future I will follow your advice @DouwedeHaan — MariaJen, Apr 24 '17 at 10:04
@Rajesh I haven't try any thing yet, I just ask right away , hehehe — MariaJen, Apr 24 '17 at 10:05
@MariaJen please next time before you post a question, do give an effort your self. Use google to search and then try on your own. If then, you are stuck somewhere, post a question — Rajesh, Apr 24 '17 at 10:07

score 11 · Accepted Answer · edited Apr 24 '17 at 10:01

11

Use Splice/Slice function as below:

var arr = [1, 2, 3, 4, 5];
arr = arr.slice(-1);
console.log(arr);

OR

var arr = [1, 2, 3, 4, 5];
arr = arr.splice(arr.length - 1,1);
console.log(arr);

edited Apr 24 '17 at 10:01

str

answered Apr 24 '17 at 09:53

1

`arr = arr.slice(arr.length - 1);` would be the better choice. – str Apr 24 '17 at 09:55
@str, yes you can also use it – Sandip - Frontend Developer Apr 24 '17 at 09:56
1

Just `arr = arr.slice(-1)` would do. – Rajesh Apr 24 '17 at 09:58
1

thank you for your answer it really works!! – MariaJen Apr 24 '17 at 09:59

1 Answers1