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: Use the Intersection Observer API to detect when a "sentinel" element (like a loading spinner) enters the viewport.

: If a user clicks into a post and then goes back, they should return to the exact spot they left off, not the top of the page. Carregar mais postagens

: Best for content where users might want to reach the footer (e.g., blogs, portfolios). It gives users control and prevents "infinite scroll fatigue." : Use the Intersection Observer API to detect

: Best for discovery-heavy feeds (e.g., social media). Posts load automatically as the user reaches the bottom of the page. Carregar mais postagens