HTML5 local storage JSON multiple objects

Question

Does anyone know, if it\'s possible to make a local storage with multiple objects in it when I\'m doing a loop in javascript?

At the moment my code looks like this:

Answer 1

You're mixing objects and strings in your code. Your album_content is initialized in the loop as an object ({name: item.name, uid: 1}). In the very next line you treat it as a string by appending a comma.

Overall use an array to collect all your objects. It's (almost) always better to use the native objects instead of trying to emulate them in some way.

Try this code instead.

var albums = '';
var album_list = [];

$.each(data, function(i,item){
   var name = item.name;
   albums += '<li>'+item.name+'</li>';

   var album_content = {name: item.name, uid: 1};
   // remove that line completly
   // var album_content = album_content+',';

   album_list.push( album_content );

});


localStorage.setItem("albums", JSON.stringify( album_list ));
var albums_l = JSON.parse(localStorage.getItem("albums"));

$.each(albums_l, function(i,item){
   console.log(item.name);
});

Answer 2

What's wrong:

var albums = '';
var album_list = '';

$.each(data, function(i,item){
   var name = item.name;
   albums += '<li>'+item.name+'</li>';

   var album_content = {name: item.name, uid: 1};

   // at this point album_content is an object.. so it will be this string afterwards: "[object Object],"
   var album_content = album_content+',';

   album_list += album_content; //you're adding "[object Object],"


});

// album_list will now look like this: '["[object Object],[object Object],"]'
var album_list = '['+album_list+']';
localStorage.setItem("albums", JSON.stringify(album_list));
var albums_l = JSON.parse(localStorage.getItem("albums"));

$.each(albums_l, function(i,item){
   console.log(item.name);
});

How to do it correct:

var albums = '';
var album_list = [];

$.each(data, function(i,item){
   var name = item.name;
   albums += '<li>'+item.name+'</li>';

   var album_content = {name: item.name, uid: 1};

   album_list.push(album_content);


});

localStorage.setItem("albums", JSON.stringify(album_list));
var albums_l = $.parseJSON(localStorage.getItem("albums"));

$.each(albums_l, function(i,item){
   console.log(item.name);
});