Sort a list of objects with { id: <number> } by another list containing the order of those ids

sort.ts

/**
 * Helper type for the 'sortByListOfIds' function so we can guarantee the object has an 'id' property.
 */
export type WithId = {
    id: number;
};

/**
 * Sort an array of objects in place by the 'id' key in the object.
 *
 * @param list The list of objects to sort in place.
 * @param order A list with ids defining the order of the objects.
 */
export function sortByListOfIds<T extends WithId>(list: T[], order: number[]) {
    list.sort((a, b) => order.indexOf(a.id) - order.indexOf(b.id));
}