Question

我这样说:

    var valueToPush = new Array();
    valueToPush["productID"] = productID;
    valueToPush["itemColorTitle"] = itemColorTitle;
    valueToPush["itemColorPath"] = itemColorPath;

    cookie_value_add.push(valueToPush);

结果是[;]

什么是错了?

Answer 1

喷射器必须具有 Java本的零基电解指数。因此:

var valueToPush = new Array();
valueToPush[0] = productID;
valueToPush[1] = itemColorTitle;
valueToPush[2] = itemColorPath;
cookie_value_add.push(valueToPush);

Or maybe you want to use objects (which are associative arrays):

var valueToPush = { }; // or "var valueToPush = new Object();" which is the same
valueToPush["productID"] = productID;
valueToPush["itemColorTitle"] = itemColorTitle;
valueToPush["itemColorPath"] = itemColorPath;
cookie_value_add.push(valueToPush);

相当于:

var valueToPush = { };
valueToPush.productID = productID;
valueToPush.itemColorTitle = itemColorTitle;
valueToPush.itemColorPath = itemColorPath;
cookie_value_add.push(valueToPush);

它是 Java印阵列和 Java印标(是联系阵列)之间真正的根本性和关键的区别, every本典开发商必须理解这些差异。

Answer 2

使用<><><> 代码>[]:

cookie_value_add.push([productID,itemCol或Title, itemCol或Path]);

或

arrayToPush.push([value1, value2, ..., valueN]);

Answer 3

在贾瓦伦,你试图使用的关键/价值储存的类型是个字面,而不是一个阵列。你错误地制造了一个复合阵列物体,其发生之处是,根据你提供的关键名称拥有其他财产,但阵列部分没有内容。

Instead, declare valueToPush as an object and push that onto cookie_value_add:

// Create valueToPush as an object {} rather than an array []
var valueToPush = {};

// Add the properties to your object
// Note, you could also use the valueToPush["productID"] syntax you had
// above, but this is a more object-like syntax
valueToPush.productID = productID;
valueToPush.itemColorTitle = itemColorTitle;
valueToPush.itemColorPath = itemColorPath;

cookie_value_add.push(valueToPush);

// View the structure of cookie_value_add
console.dir(cookie_value_add);

友情链接