app.js

const warnaBerubah = async (color, gagal, berhasil) => {
  const delay = Math.floor(Math.random() * 4000) + 500;
  console.log(delay);
  setTimeout(() => {
        if (delay > 3000) {
          gagal('gagal');
        } else {
          document.body.style.backgroundColor = color;
          berhasil('berhasil');
        }
      }, delay,
  );
};
const perubahan = async () => {

  const gagal = (errorMessage) => {
    console.log(errorMessage);
  };

  const berhasil = (successMessage) => {
    console.log(successMessage);
  };

  try {
    await warnaBerubah('blue', gagal, berhasil);
  } catch (sa) {
    console.log(sa);
  }

};

perubahan();