My goal is to construct a custom table using Angular, where I aim to define a TableItem type that enforces the presence of a label property for every item added to the table.
For instance, consider this example:
<app-my-table [items]="items"></app-my-table>
In this scenario, any object assigned to items must include a label property.
I am struggling to develop an effective approach to achieve this requirement.
One way to tackle this is by utilizing an indexer like so:
interface TableItem {
label: string;
[key: string]: any;
}
items: TableItem[] = [
{ label: 'A', otherField: 1 }, // This works fine
{ otherField: 2 } // Error: Property 'label' is missing in type ...
]
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