A Typescript interface fails to validate a dynamic object if it does not include required keys

Looking for a way to incorporate an interface for this array of objects that is being passed as a prop.

const playersData = [
    {
        id: 1, // Will always be a number (provided by user)
        extraNode: <ExampleComponent />, // Optional React component sent by user

        // The following values can vary based on what the database sends. 
        // They are always strings but can include other properties like height, age, etc.
        position: '1',
        player: 'Miroslav Klose',
        goals: '16',
        games: '24',
        country: 'Germany',
    },
    {
        id: 2,
        extraNode: <ExampleComponent />,
        position: '2',
        player: 'Ronaldo',
        goals: '15',
        games: '19',
        country: 'Brazil',
    },
];

The id will consistently be a number and extraNode will be a React Component if provided. The challenge lies in handling the dynamic nature of other key-value pairs such as age, height, etc.

I attempted the following code, but encountered an error:

export interface tableData {
    id: number;
    extraNode?: React.ReactNode;
    [key: string]: string;
  }
  
export interface TableProps extends HTMLAttributes<HTMLDivElement> {
    tableData: tableData[];
}

Answer №1

If you want to define a data structure in TypeScript, consider using a Record type.

type User = Record<string, string>

interface Info {
    id: number;
    extraElement: React.ReactElement;
    user: User;
}

const exampleData: Info = {
    id: 456,
    extraElement: <AnotherComponent />
    user:{
        role: "admin",
        name: "John Doe"
    }
}

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