类型记录动态对象接口

Question

我正在使用javascript创建一个对象，并希望为数据添加一个接口：

Javascript：

const childGroups: Children = {};
      childGroups.children = [];

// Pushing some data 
childGroups.children.push(children);

接口：

export interface Child {
    ClusterPoint
}

export interface Children {
    children: {
        [key: number]: Child
    }
}

我得到以下错误：Property 'children' is missing in type '{}' but required in type 'Children'. Property 'push' does not exist on type {[key: number]: Child}

数据如下：

​

​

任何帮助都将不胜感激。

更新

多亏了尼基塔·马德耶夫，我才得以让它与此协同工作：

export interface Child {
    children: {
        ClusterPoint
    };
}

export interface Children {
    children: Child[];
}

Answer 1

export interface Child {
    ClusterPoint;
}

export interface Children {
    children: Child[];
}

const childGroups: Children = { children: [] };

// Pushing some data
childGroups.children.push(newChildren);

1. Children.children -对象，而不是数组，对象在初始化过程中没有推送方法
2. ，您需要指定所有必要的属性

。

Answer 2

如果您想要实现这种结构

const childGroups: Children = {};
      childGroups.children = [];

那么接口将是

export interface Children {
    children?: Child[];
}

如果你想实现这个结构

const childGroups: Children = {};
      childGroups.children = {[some_id]: some_childValue};

那么接口将是

export interface Children {
    children?: {
      [key: number]: Child
     };
}