read-only.ts

/**
 * Angular read only property decorator
 *
 */

export function readOnly(prototype: any, name: string) {
  Object.defineProperty(prototype, name, {
    writable: false,
  });
}

/**
 * How to use it?
 *
 * export class AppComponent implements OnInit {
 * @readOnly
 * tax = 50;
 * ............
 * }
 */