How to get localStorage array data.

Question

I am new to localStorage. I set array in localstorage so how can get this value. My code as below.

$scope.lineItemID = data.id;
                    var itemtemp={
                        "itemid": data.id,
                        "qty": $scope.quantity
                    };
                    var itemqty=JSON.parse(localStorage.getItem("itemqty")) || [];
                    itemqty.push(itemtemp);
                    localStorage.setItem("itemqty", JSON.stringify(itemqty));

So my question is how can I get itemqty.qty as per itemid from localstorage

is this similar?http://stackoverflow.com/questions/8419354/get-html5-localstorage-keys — huan feng, Nov 19 '14 at 06:14
You are doing it right.. itemQty is just an array after JSON.parse and you can extract ith elements like itemQty[i].qty — Amitesh, Nov 19 '14 at 06:22

score 0 · Answer 1 · answered Nov 19 '14 at 06:17

0

try Below code

    $.each(data.itemqty, function(index, item) {

// append data using html //use item.name

});

OR try below

$.each(data, function(idx, item){

// append data using html //

});

answered Nov 19 '14 at 06:17

Som

66
8

score 0 · Answer 2 · answered Nov 19 '14 at 06:38

You are quite simply creating an array of objects itemqty and saving it in the browser's storage. When you do this:

var itemqty=JSON.parse(localStorage.getItem("itemqty")) || [];
//itemqty is available to you as an array of objects.

Suppose you are looking for the associated quantity for some itemid stored in the variable foo. You just need to traverse the parsed itemqty like so:

 $.each(itemqty, function( index, value ) {
  if(value.itemid == foo)
     {
       console.log(value.qty);
       // value.qty is the required quantity
     }
});

score 0 · Answer 3 · answered Nov 19 '14 at 10:23

0

items=JSON.parse(localStorage.getItem('itemqty'));

    for (var i = 0; i < items.length; i++) {
        if(items[i].itemid === itmId) {
            return items[i].qty;
        }                       
    }

I am using it & it's working

answered Nov 19 '14 at 10:23

Harsh Gandhi

59
3
11

How to get localStorage array data.

3 Answers3