How to check last array object

Question

I have an array object:

var checkin_status = [
{"startdate":"2015-01-08",
"totaldays":"3",
"roadmap":[
        {"gifttype":"stars","quantity":100,"day":1},
        {"gifttype":"stars","quantity":500,"day":3},
        {"gifttype":"stars","quantity":1000,"day":10},
        {"gifttype":"stars","quantity":1200,"day":20}
      ]

}];

I use $.each to display them to view, now how can I check last object in roadmap ? Because I have to give some condition for the last object. Any suggestion to do that ? Thanks

@tabz100 Uncaught ReferenceError: roadmap is not defined

FeelRightz
– FeelRightz

2015-01-14 03:21:36 +00:00
Commented Jan 14, 2015 at 3:21 — FeelRightz
– FeelRightz, Commented Jan 14, 2015 at 3:21

praneetloke · Accepted Answer · 2015-01-14 03:26:09Z

2

//assuming that you already have a better logic to select the roadmap from the checkin_status object
//assign the current roadmap object to a local var before you iterate through it
var roadmap = checkin_status[0].roadmap;
$.each(roadmap, function (index, item) {
   //'item' is the object of the current iteration..
   if (index === roadmap.length - 1) {
      //do something special with the last item
   }
});

The reason for length - 1 is because, arrays are indexed by 0 in Javascript. For ex., if you have 4 items, then the last item is index 3.

answered Jan 14, 2015 at 3:26

praneetloke

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