Error TS 2322 - The property 'id' is not present in the object of type '{ id: number'

Just starting out with Angular and TypeScript. I created a model with the same properties but encountered an error and am struggling to find a solution:

TS2322: Type '{ id: number; model: string; plate: string; deliveryDate: string; deadline: string; client: { fir...' is not assignable to type 'Car'. Property 'id' is missing in type '{ id: number; model: string; plate: string; deliveryDate: string; deadline: string; client: { fir...'. cars : Car = [

Here are my files:

//cars-list.component.ts

import { Car } from '../models/car';
.
.
.
cars : Car = [
{
  id: 1,
  model: 'Mazda Rx7',
  plate: 'GD2121E',
  deliveryDate: '21-04-2017',
  deadline: '05-05-2016',
  client: {
    firstName: 'Jan',
    surname: 'Kowalski'
  },
  cost: 300,
  isFullyDamaged: true
}, 
...

and

//car.ts
import {Client} from './client';
export interface Car {
  id: number;
  model: string;
  plate: string;
  deliveryDate: string;
  deadline: string;
  client: Client;
  cost: number;
  isFullyDamaged: boolean;
}

Answer №1

When assigning an array of objects to a variable typed as Car, ensure that the variable is an array of Cars.

carsList: Car[] = [
{
  id: 1,
  model: 'Mazda Rx7',
  plate: 'GD2121E',
  deliveryDate: '21-04-2017',
  deadline: '05-05-2016',
  client: {
    firstName: 'Jan',
    surname: 'Kowalski'
  },
  cost: 300,
  isFullyDamaged: true
}, 
...

Answer №2

If you're like me and have used the following:

var myObject = objects.filter(o => o.id === id)

Consider switching to the find() method for a direct object return instead of an array:

var myObject = objects.find(o => o.id === id)

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