如何在jQuery Cookie中存储数组? [英] How to store array in jQuery cookie?

问题描述

我正在基于如何存储jQuery cookie中的数组?.我正在使用almog.ori中的函数:

I'm opening a new thread based on this how to store an array in jquery cookie?. I'm using function from almog.ori :

var cookieList = function(cookieName) {
//When the cookie is saved the items will be a comma seperated string
//So we will split the cookie by comma to get the original array
var cookie = $.cookie(cookieName);
//Load the items or a new array if null.
var items = cookie ? cookie.split(/,/) : new Array();

//Return a object that we can use to access the array.
//while hiding direct access to the declared items array
//this is called closures see http://www.jibbering.com/faq/faq_notes/closures.html
return {
    "add": function(val) {
        //Add to the items.
        items.push(val);
        //Save the items to a cookie.
        $.cookie(cookieName, items);
    },
    "clear": function() {
        //clear the cookie.
        $.cookie(cookieName, null);
    },
    "items": function() {
        //Get all the items.
        return items;
    }
  }
}

在click事件上获取索引元素数组:

to grab an array of index element on click event :

var list = new cookieList("test");
$(img).one('click', function(i){
while($('.selected').length < 3) {
    $(this).parent()
        .addClass("selected")
        .append(setup.config.overlay);

    //$.cookie(setup.config.COOKIE_NAME, d, setup.config.OPTS);
    var index = $(this).parent().index();

    // suppose this array go into cookies.. but failed
    list.add( index );
    // this index goes in array
    alert(list.items());

    var count = 'You have selected : <span>' + $('.selected').length + '</span> deals';
    if( $('.total').length ){
        $('.total').html(count);
    }

} 
});

当我获得项目列表时，它返回null，但是当我在onclick事件中发出警报时，最终它将值推入该数组中.但是，当我尝试取回cookie时，它返回null.请帮助...

When I getting list of items, it return null but when I alert in onclick event, eventually it push value into that array. But when I'd tried to retrieve back cookie, it return null. Help please...

推荐答案

此行:

$.cookie(cookieName, items);

也应该从数组中创建字符串，如下所示:

Should create the string from the array as well, like this:

$.cookie(cookieName, items.join(','));

因此，当通过cookie.split(/,/)加载数组时，它会获得期望的字符串(以逗号分隔).

This is so that when loading the array via cookie.split(/,/), it gets a string it expects (comma-delimited).

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