10.ts

type StreetSuffixTester<
  Address extends string,
  Suffix extends string
> = Address extends `${string}${Suffix}` ? true : false;

// TESTS
import { Expect, Equal } from "type-testing";

type test_0_actual = StreetSuffixTester<"Candy Cane Way", "Way">;
type test_0_expected = true;
type test_0 = Expect<Equal<test_0_expected, test_0_actual>>;

type test_1_actual = StreetSuffixTester<"Chocalate Drive", "Drive">;
type test_1_expected = true;
type test_1 = Expect<Equal<test_1_expected, test_1_actual>>;

type test_2_actual = StreetSuffixTester<"Sugar Lane", "Drive">;
type test_2_expected = false;
type test_2 = Expect<Equal<test_2_expected, test_2_actual>>;

type test_3_actual = StreetSuffixTester<
  "Fifth Dimensional Nebulo 9",
  "invalid"
>;
type test_3_expected = false;
type test_3 = Expect<Equal<test_3_expected, test_3_actual>>;