在另一个对象javascript中引用对象

Question

所以我有两组不同的对象：

var house = {};
house["01"] = {hID: "01", neighbh: "00001", name: "house 1"};
house["02"] = {hID: "02", neighbh: "00001", name: "house 2"};
house["03"] = {hID: "03", neighbh: "00002", name: "house 3"};
house["04"] = {hID: "04", neighbh: "00003", name: "house 4"};

var neighborhood = {};
neighborhood["00001"] = {id: "00001", name: "first neighborhood", houses: {} };
neighborhood["00002"] = {id: "00002", name: "second neighborhood", houses: {} };
neighborhood["00003"] = {id: "00003", name: "third neighborhood", houses: {} };

我希望能够引用社区内房屋 {} 内的房屋对象。但是将它们过滤到各自的社区。即 house["01"] 应该去邻里 ["00001"] （那些邻里 id 匹配 house neighbh 的人）。这样我就可以将所有房屋放在一个不同的对象中，但仍然可以通过邻域对象对它们进行更改。希望我已经设法让自己说清楚了。

任何帮助将不胜感激。谢谢

Answer 1

Javascript 中的对象是通过引用传递和存储的。所以，假设你有一个所有房屋的主阵列：

var houses = [
    {hID: "01", neighbh: "00001", name: "house 1"},
    {hID: "02", neighbh: "00001", name: "house 2"}
];

然后，您有一组邻域对象，每个对象都有一些关于邻域的识别信息，然后是该邻域内的房屋列表：

var neighborhoods = [
    {id: "00001", name: "first neighborhood", houses: [houses[0], houses[1]]} 
];

在这样的结构中，每个房屋对象只有一个副本。您可以通过您拥有的任何参考资料对其进行修改。因此，您可以通过主房屋数组对其进行修改。或者，您可以通过社区内的房屋数组对其进行修改。每个都指向完全相同的房屋对象。因此，当您在一处修改它时，您正在修改实际的房屋对象，并且引用该特定房屋对象的每个人都会看到这些修改。

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所以，在你摆姿势的结构中（它使用对象作为容器，而不是我用来保存多个项目的数组）。我认为您可以像这样填写并完成您的要求：

var house = {};
house["01"] = {hID: "01", neighbh: "00001", name: "house 1"};
house["02"] = {hID: "02", neighbh: "00001", name: "house 2"};
house["03"] = {hID: "03", neighbh: "00002", name: "house 3"};
house["04"] = {hID: "04", neighbh: "00003", name: "house 4"};

var neighborhood = {};
neighborhood["00001"] = {id: "00001", name: "first neighborhood", houses: [house["01"], house["02"]]};
neighborhood["00002"] = {id: "00002", name: "second neighborhood", houses: [house["03"]] };
neighborhood["00003"] = {id: "00003", name: "third neighborhood", houses: [house["04"]] };

仅供参考，似乎一个社区中的房屋列表应该是一个数组，而不是一个对象。