Get the last two positions of an array

Question

I would like to know how can I obtain the last two elements of this array like this:

array = [1,5,7,8,10,12,23,24];

I am trying to obtain with slice() function but it doesn´t work for me, beacuse I always I want to obtain the last two positions.

array = [23,24];

I hope that anyone can help me in this question.

Regards!

@FabianSierra It's the same problem. The number doesn't matter. — Carcigenicate, Feb 21 '17 at 13:42

score 17 · Accepted Answer · edited May 23 '17 at 12:09

17

Use Array#slice with negative index.

var array = [1,5,7,8,10,12,23,24];

console.log(array.slice(-2));

You can learn more about this method also here.

edited May 23 '17 at 12:09

Community

answered Feb 21 '17 at 13:27

kind user

Just a pointer, next time if you see such a basic question, please look for possible duplicates and close it as duplicate. Its a bad practice to answer a dupe. :-) – Rajesh Feb 21 '17 at 13:35
@Rajesh If only I could close the question and mark it as duplicate, I would do it immediately. I just need more rep points to do it. – kind user Feb 21 '17 at 13:37
You could share dupe as comment so others who have reps could close it. – Rajesh Feb 21 '17 at 13:38
@Rajesh Right. Thank you. – kind user Feb 21 '17 at 13:39

guradio · Answer 2 · 2017-02-21T13:32:19.457

1

array = [1,5,7,8,10,12,23,24];


console.log(array.slice(-2))

Use slice -2

edited Feb 21 '17 at 13:32

answered Feb 21 '17 at 13:27

guradio

@Rajesh it was a typo – guradio Feb 21 '17 at 13:32
Also a minor question, this is a basic question. Did you tried looking for possible duplicates before answering? – Rajesh Feb 21 '17 at 13:33
I liked the first edit, I didn't even know you could create a number like that. JS truly is a weird and wonderful language. – George Feb 21 '17 at 13:37

Sankar · Answer 3 · 2017-02-21T13:50:59.040

0

Note: Splice it will update the original array also

var array = [1,5,7,8,10,12,23,24];

console.log(array.splice(-2));

edited Feb 21 '17 at 13:50

answered Feb 21 '17 at 13:36

Sankar

Whats the difference between your answer and other answers? A user with your rep should know to read other answers before posting – Rajesh Feb 21 '17 at 13:36
@Rajesh `splice` vs `slice` – Sankar Feb 21 '17 at 13:37
*I am trying to obtain with slice() function* OP is looking for `slice`. Also splice will update original array – Rajesh Feb 21 '17 at 13:39
I said `splice` **also** can do this. Yes. it will affect original array also. i will update my content. – Sankar Feb 21 '17 at 13:49

3 Answers3