Invoking a nested class while declaring types in TypeScript

This is the specific format of data that I am in need of

this.structure=[
    {
      id: 1,
      name: 'root1',
      children: [
        { id: 2, name: 'child1' },
        { id: 3, name: 'child2' }
      ]
    },
    {
      id: 4,
      name: 'root2',
      children: [
        { id: 5, name: 'child2.1' },
        {
          id: 6,
          name: 'child2.2',
          children:[
            {id:7, name:'child2.2.1'}
          ]
        }
      ]
    },
  ];

When defining the data type, I must create a class structured like this

export class NodeStructure {
    id: number;
    name: string;
    children: NodeStructure[];
}

The issue arises when trying to reference NodeStructure within itself due to the varying depth of children. How can I recursively utilize the class inside it.

P.S. This project is built using Angular 2.

Answer №1

To change your interface, consider the following:

export class MapperNodes {
  id: number;
  title: string;
  subnodes?: MapperNodes[];
}

If you're encountering an error related to this section:

...
subnodes: [
    { id: 5, title: 'child2.1' },
    {...

The issue might be that the subnodes property is missing, making it necessary to mark it as optional using a question mark before the property name like so:

subnodes?: MapperNodes[];

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