JQuery 和 Phonegap 将本地存储中的数据保存在数组中

Question

我有存储在本地存储中的数据，我想将其拉入数组。但没有成功...正如您将在下面的代码中看到的，我正在尝试 console.log 数组，但它写给我:

(Chrome 控制台)

Uncaught SyntaxError: Unexpected end of input index.html:204 (anonymous function) index.html:204 e.resolveWith jquery-1.6.min.js:16

e.extend.ready jquery-1.6.min.js:16 c.addEventListener.z jquery-1.6.min.js:16

cordova :: fired deviceready event! ripple.js:37

8 canvas not found!

这是我的本地存储: 这是代码:

            $(function() {
                window.localStorage.setItem('Sample block', '{"time":1383107260539,"counter":5}');

                track_items_for_chart = [];

                for (i = 0; i < window.localStorage.length; i++) {
                    var key_name = (window.localStorage).key(i);

                    var time = (window.localStorage.getItem(key_name));
                    time = (JSON.parse(time)).time;
                    var counter = jQuery.parseJSON(window.localStorage.getItem(key_name)).counter;
                    counter = JSON.parse(counter);
                    track_items_for_chart.push("{ date: " + time + ", km: " + counter + "},");
                }
console.log(track_items_for_chart);

    });

Answer 1

这些是我编写的函数，用于将字符串转换为数组、添加数据、转换回字符串，然后保存到本地存储。

// Converts a string from local storage to an array
// to be used by program
function convert_string_to_array (string)
{

var array = string.split("^");
return array;
}

// Converts array to string to be saved into local storage

function convert_array_to_string (array)
{

var string;

for (var i = 0; i < array.length ; i++)
{
if (string != undefined){
    string = string + "^" + array[i]; // 
 }else{
    string = array[i];
}
}

return string;
}

// Used to allow user to store a string

function add_to_array(array,welcome) // simple function to add data to array
{
array[array.length] = prompt(welcome);
}

基本上，如果你有一个字符串数组，例如 myStrings = ["Hello","hi","hey how are you"]这将允许您将其存储到本地存储以供将来使用，它将以 localStorage.myStrings = Hello^hi^hey how are you^ 的形式存储。另外，如果您希望 ^ 成为数据中的常见字符，只需将其更改为上述函数中您想要的任何字符即可。