Deno.test("implement-trie-ii-prefix-tree", () => { const trie: Trie = new Trie(); trie.insert("apple"); trie.insert("apple"); assertEquals(2, trie.countWordsEqualTo("apple")); assertEquals(2, trie.countWordsStartingWith("app")); trie.erase("apple"); assertEquals(1, trie.countWordsEqualTo("apple")); assertEquals(1, trie.countWordsStartingWith("app")); trie.erase("apple"); assertEquals(0, trie.countWordsStartingWith("app")); });import { assertEquals } from "../deps.ts";import Trie from "./index.ts";