如何删除cookie中的特定值- jquery

How to delete a specific value in a cookie - jquery

本文关键字：jquery cookie 何删除 删除      更新时间：2023-09-26

我正在开发一个购物车系统，用户可以在其中添加或删除产品到他或她的购物篮。

我在产品cookie中为每个产品存储2个东西:产品条形码和价格。

到目前为止，我的代码是这样的: 
var addToBasketHandler = $(".add-product");
var removeFromBasketHandler = $(".unselect");
var Basket = {
    select: function (box, cookie) {
        box.addClass("selected");
        var ean = box.attr('ean');
        var value = box.find($(".price strong")).html().replace(/[^0-9'.]/g, '');
        if ($.cookie(cookie) == undefined) {
            $.cookie(cookie, ean + "~" + value);
        } else if ($.cookie(cookie).indexOf(ean) == -1) {
            $.cookie(cookie, $.cookie(cookie) + "|" + ean + "~" + value);
        }

    },
    deselect: function (box, cookie) {
        box.removeClass("selected");
        //  code to delete the cookie value
    }
};
$(document).ready(function () {
    $(addToBasketHandler).click(function () {
        var box = $(this).parents(".box-offer");
        Basket.select(box, "productCookie");
    });
    $(removeFromBasketHandler).click(function () {
        var box = $(this).parents(".box-offer");
        Basket.deselect(box, "productCookie");
    });
});

添加3个产品到购物车后，我的cookie看起来是这样的:

productCookie = 9918430821007~12.00 | 7C9918430831006~3.00 | 7C7501031311309~50.30

请帮助我如何从上面的cookie列表中只删除选定的产品。

仅供参考，我使用jquery + jquery cookie

Try

deselect: function (box, cookie) {
    box.removeClass("selected");
    var ean = box.attr('ean');
    var value = box.find($(".price strong")).html().replace(/[^0-9'.]/g, '');
    var val = ean + "~" + value; //value to be removed
    if ($.cookie(cookie) !== undefined) {
        var cookie_val = $.cookie(cookie);
        if (cookie_val.indexOf(val) !== -1) { //check value present in cookie
            var arr = cookie_val.replace(' ', '').split('|'); //remove spaces and split with |
            var index = arr.indexOf(val);//get index of value to be deleted
            arr.splice(index, 1); //remove value from array 
            $.cookie(cookie, arr.join(' | ')); //convert array to sting using join and set value to cookie
        }
    }
}
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