how add number to an array in javascript?

Question

I am trying to add a number to an array .

code:

var year = mm[2].value+1;

but it results undefined.

can you guys how to do this?

What is in `mm[2]`? If it's already a number, you don't need to do `.value` `mm[2] + 1` will suffice — Bort, Dec 08 '12 at 14:05
What exactly is `mm`? You cannot add a number to an array, only to an array element or append it to an array. — crackmigg, Dec 08 '12 at 14:07
mm[2] is an array in which a number is stored and I am trying to add a numeric value to it. — user1887832, Dec 08 '12 at 14:10
@user1887832 Is `mm[2]` an array as well or did you mean to say `mm is an array...`? — Asad Saeeduddin, Dec 08 '12 at 14:13
var dt = "12/02/2012"; var mm = de.split("/"); var year = mm[2]+1; — user1887832, Dec 08 '12 at 14:18

Asad Saeeduddin · Answer 1 · 2012-12-08T14:23:12.997

1

You need to parse the string to an integer before you add to it:

var dt = "12/02/2012"; 
var mm = de.split("/"); 
var year = parseInt(mm[2])+1;

edited Dec 08 '12 at 14:23

answered Dec 08 '12 at 14:12

Asad Saeeduddin

var dt = "12/02/2012"; var mm = de.split("/"); var year = mm[2]+1; – user1887832 Dec 08 '12 at 14:19
@user1887832 `mm[2]` is *not* an array. It is a string. I've updated my answer. – Asad Saeeduddin Dec 08 '12 at 14:23

1 Answers1