<!-- BEGIN COPY / PASTE -->
    // State object to hold application data
    const state = {
      count: 0
    };

    // Function to update state and re-render UI
    function setState(newState) {
      Object.assign(state, newState);
      render();
    }

    // Example render function
    function render() {
      document.getElementById('count').textContent = state.count;
    }

    // Event listener to modify state
    document.getElementById('increment').addEventListener('click', () => {
      setState({ count: state.count + 1 });
    });

    // Initial render
    render();
    <!-- END COPY / PASTE -->