export default () => { let chatVisible = true; const toggleChatButton = document.querySelector('#chat-toggle'); const rightPanel = document.querySelector('.right-panel'); console.log('toggleChatButton', toggleChatButton) const handleButtonClick = () => { if (chatVisible) { rightPanel.classList.add('chat-hidden'); chatVisible = false; } else { rightPanel.classList.remove('chat-hidden'); chatVisible = true; } } if (toggleChatButton) { toggleChatButton.addEventListener('click', handleButtonClick, false); } };