setInterval(() => if (dashboardMode === 'auto_refresh_top') refreshTop(); , 5000); Even with a solid pattern, problems arise. Here is your troubleshooting guide. Issue 1: The "Scroll Flash" Symptoms: The viewerframe scrolls to top, then visually jumps down, then back up. Cause: Asynchronous rendering. The scrollTop = 0 runs before the new content is fully painted. Fix: Use requestAnimationFrame or setTimeout(..., 0) .
let state = mode: 'view', // 'view', 'refreshing' items: [], frameElement: document.getElementById('viewerframe'), ; async function fetchData() // Simulate API call return Array.from( length: 50 , (_, i) => Item $i + 1: Updated at $new Date().toLocaleTimeString() ); viewerframe mode refresh top
// Initial load fetchData().then(data => state.items = data; render(); ); if (dashboardMode === 'auto_refresh_top') refreshTop()
document.getElementById('refreshBtn').addEventListener('click', refreshTop); Even with a solid pattern
.item padding: 20px; border-bottom: 1px solid #eee;
setInterval(() => if (dashboardMode === 'auto_refresh_top') refreshTop(); , 5000); Even with a solid pattern, problems arise. Here is your troubleshooting guide. Issue 1: The "Scroll Flash" Symptoms: The viewerframe scrolls to top, then visually jumps down, then back up. Cause: Asynchronous rendering. The scrollTop = 0 runs before the new content is fully painted. Fix: Use requestAnimationFrame or setTimeout(..., 0) .
let state = mode: 'view', // 'view', 'refreshing' items: [], frameElement: document.getElementById('viewerframe'), ; async function fetchData() // Simulate API call return Array.from( length: 50 , (_, i) => Item $i + 1: Updated at $new Date().toLocaleTimeString() );
// Initial load fetchData().then(data => state.items = data; render(); );
document.getElementById('refreshBtn').addEventListener('click', refreshTop);
.item padding: 20px; border-bottom: 1px solid #eee;