<button>Select</button>
<dialog>
  <div><input type="checkbox">checkbox1<input type="number"></div>
  <div><input type="checkbox">checkbox2<input type="number"></div>
  <div><input type="checkbox">checkbox3<input type="number"></div>
  <button>Go</button>
</dialog>

let dialog = document.querySelector("dialog");

document.querySelector("button").addEventListener("click", () => {
  dialog.showModal();
});

document.querySelector("dialog>button").addEventListener("click", () => {
  dialog.close();
});