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a tool for shared writing and social publishing forked from leaflet.pub/leaflet
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TypeScript
12345678910111213141516171819export async function isVisible(el: Element) { return new Promise<boolean>((resolve) => { const observer = new IntersectionObserver( (entries, observer) => { entries.forEach((entry) => { resolve(entry.isIntersecting); observer.unobserve(entry.target); }); }, { root: null, // Use the viewport as the root threshold: 0.1, // Trigger when 10% of the element is visible }, );
observer.observe(el); });}