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HTML5 local JSON storage multiple objects

Does anyone know if it is possible to make local storage with multiple objects in it when I do a loop in javascript?

At the moment, my code looks like this:

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};
   var album_content = album_content+',';

   album_list += album_content;


});

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);
});

But that gives me an error. Does anyone have a better solution for this, so I only have one local resource and all the data in it?

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2 answers

You mix objects and strings in your code. Your is album_contentinitialized in the loop as an object ( {name: item.name, uid: 1}). On the next line, you treat it as a string, adding a comma.

In general, use an array to collect all of your objects. It is (almost) always better to use your own objects, rather than trying to mimic them somehow.

.

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);
});
+6

:

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);
});

:

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);
});
+1

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