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19 lines
938 B
JavaScript
19 lines
938 B
JavaScript
// Create a function that will handle any intersection between some elements and the viewport.
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const handleFooterIntersection = function (entries) {
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// Loop through all the observed elements
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entries.forEach(entry => { // Check if the element is intersecting the viewport
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if (entry.isIntersecting) {
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msgConsole('IntersectionObserver','The footer is visible in the viewport');
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if (typeof footerIsNowVisible === 'function') footerIsNowVisible(entry);
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} else {
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msgConsole('IntersectionObserver','The footer is invisible in the viewport');
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if (typeof footerIsNowInvisible === 'function') footerIsNowInvisible(entry);
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}
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});
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}
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const section_footer = document.querySelector("#footer");
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if (section_footer) {
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const footerObserver = new IntersectionObserver(handleFooterIntersection);
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if (footerObserver) footerObserver.observe(section_footer);
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} else myLog('No footer to observe'); |