javascript - localStorage issue - Items not displayed (JSON/JQUERY) -

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i'm trying , sort items in localstorage , output html page.

this i'm doing:

  <script>      function shoppingcart() {          var totalprice = 0;         var output;         var productname;         var productalbum;         var productquantity;         var productprice;         var productsubtotal = 0;         var totalprice;          (var = 0; < localstorage.length-1; i++){              var keyname = localstorage.key(i);             if(keyname.indexof('product_')==0) // check if key startwith 'product_'             {                 var product =  localstorage.getitem('product_'+i);                  var result = json.parse(product);                  var productname;                 var productalbum;                 var productquantity;                 var productprice;                 var productsubtotal = 0;                 var totalprice;                  productname = result.name                 productalbum = result.album;                 productquantity = result.quantity;                 productprice = parsefloat(result.price).tofixed(2);                 productsubtotal = parsefloat(productquantity * productprice).tofixed(2);                    outputname = "<div id='cart-table'><table><tr><td><b>name: </b>" + productname + "</td></tr></div>" ;                 outputalbum = "<tr><td><b>album: </b>" + productalbum + "</td></tr>" ;                 outputquantity = "<tr><td><b>quantity: </b>" + productquantity + "</td></tr>";                 outputprice = "<tr><td><b>price: </b> eur " + productprice + "</td></tr>";                 outputsubtotal = "<tr><td><b>sub-total: </b> eur " + productsubtotal + "</td></tr></table><br><br>";                   var outputtotal = "<table><tr><td><b>total:</b> eur " + totalprice + "</td></tr></table>";                 var totaloutput = outputname + outputalbum + outputquantity + outputprice + outputsubtotal + outputtotal;                 document.getelementbyid("cart-contents").innerhtml=totaloutput;               }             }              alert(totaloutput);         }      window.onload = shoppingcart;   </script>

the item being output item named 'proudct_0' in localstorage. others not being displayed!

this have in localstorage: http://i.imgur.com/shxxlol.png

any idea why happening ?

something wrong in code. think if product_0 not in localstorage?

var product =  localstorage.getitem('product_'+i); var result = json.parse(product);

may null , throw error.

try this:

for (var = 0; < localstorage.length-1; i++){      var keyname = localstorage.key(i);      if(keyname.indexof('product_')==0) // check if key startwith 'product_'      {         var product = localstorage.getitem(keyname);         //do code here      } }

update

document.getelementbyid("cart-contents").innerhtml=totaloutput;

it's replace, not append

hope help!


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