// @ts-check // API Response Handling with Index Signatures /** @typedef {{ id: number; name: string; email: string }} User */ /** * Example ApiResponse<T> * data: { [resourceType: string]: T[] } * meta: { page: number; total: number; [key: string]: any } */ /** @type {{ data: { [resourceType: string]: User[] }; meta: { page: number; total: number; [key: string]: any } }} */ const apiResponse = { data: { users: [ { id: 1, name: "Alice", email: "alice@example.com" }, { id: 2, name: "Bob", email: "bob@example.com" } ] }, meta: { page: 1, total: 2, timestamp: "2023-01-01T00:00:00Z" } }; const users = apiResponse.data.users; console.log("Users count:", users.length); console.log("First user name:", users[0].name); console.log("Meta page:", apiResponse.meta.page); console.log("Meta total:", apiResponse.meta.total); console.log("Meta timestamp:", apiResponse.meta.timestamp);