text.includes(query) ? "block" : "none"; }); }); 2. Drag & Drop UI Membuat antarmuka drag-and-drop dengan API DOM (MDN Reference): const draggable = document.querySelector(".draggable"); draggable.addEventListener("dragstart", (e) => { e.dataTransfer.setData("text/plain", e.target.id); }); ... document.querySelector(".dropzone").addEventListener("drop", (e) => { e.preventDefault(); const id = e.dataTransfer.getData("text/plain"); e.target.appendChild(document.getElementById(id)); }); 3. Single Page Application (SPA) Routing Update konten halaman tanpa reload menggunakan
