I wonder if someone can assist me with MVC architecture. I took a course in MVC from Udemy and now I have a pet project I’m working on. In a nutshell. I have three JS files: controller, model and view. I am watching activeHeading2 element and it a user scrolls past it, manipulates classes on ..
Category : intersection-observer
I was trying to animate the images in carousel made with scroll-snap and IntersectionObserver. Even thought the intersection observer is observing the parent element which is not scaled, it doesn’t work as expected. Scaling animation on the images does work (kind of), but jumps sporadicly or even skips the slides all together 🤔 const images ..
I have tried to work with Intersection Observer. This is the result so far: const mediaInViewport = Array.from(document.querySelectorAll(‘.media’)); const sections = Array.from(document.querySelector(‘#right’).children); const links = Array.from(document.querySelectorAll(‘.link’)); let actLink = links[0]; let actSection = null; let targetLink = null; let targetSection = null; document.body.addEventListener(‘click’, (event) => { if (event.target.tagName === ‘A’) { event.preventDefault(); targetLink = event.target; ..
cannot fully understand the IntersectionObserver in the example below, everything works fine, but I’m trying to write only one single observer for multiple entries and I’m getting various error messages. Pls, help let io = new IntersectionObserver((entries)=>{ entries.forEach(entry=>{ if(entry.isIntersecting){navt.classList.remove(‘navt1’);} else{navt.classList.add(‘navt1’);} }) }) let io2 = new IntersectionObserver((entries)=>{ entries.forEach(entry=>{ if(entry.isIntersecting){gotopw.style.display = ‘block’;} else{gotopw.style.display = ‘none’;} }) ..
I have a problem with observers callbacks execution order. There are ResizeObserver on parent and IntersectionObserver on children in my app. So their behavior is unpredictable and callbacks execute absolutely randomly, as the browser decides. But I need them to execute one after another. Anyway is it possible to set the order of execution at ..
I’m trying to create events each time that the user observes certain elements of the HTML code: <div class="myunit no1">…</div> <div class="myunit no2">…</div> <div class="myunit no3">…</div> I created the following JavaScript code: const myElements = document.querySelectorAll(‘div.myunit’); const config = {rootMargin: ‘0px 0px 500px 0px’}; let observer = new IntersectionObserver(function (events, self) { events.forEach(event => { ..
I have one sticky navbar where a list item highlights when its corresponding section is viewed via scroll and I am using IntersectionObserver. I am getting problem only for the first item which has its section defined immediately after the sticky navbar following the second section. The issue is when I scroll up from second ..
I’m having issues with my InsersectionObserver code: The content of the .timeline-graphs class should be appearing from bellow (@keyframes animation in CSS), but only when the the viewport intersects with it, thanks to InsersectionObserver (JS). Simple enough, but I can’t manage it to work. This is the code: HTML: <section class="timeline-graph-section"> <article class="timeline-graphs"> <h1>This is ..
This is my code so far: const mediaInViewport = document.querySelectorAll(‘.media’); const links = Array.from(document.querySelectorAll(‘.link’)); let actLink = links[0]; document.body.addEventListener(‘click’, (event) => { if (event.target.tagName === ‘a’) { actLink.classList.remove(‘active’); actLink = links.find(link => event.target.href === link.href) actLink.classList.add(‘active’); } }, false) observer = new IntersectionObserver((entries, observer) => { entries.forEach((entry) => { if (entry.target && entry.isIntersecting) { const ..
This is my code so far: // Click Function $(‘body’).on(‘click’, ‘a’, function() { $(‘a.active’).removeClass(‘active’); $(this).addClass(‘active’); }); // Scroll Function const mediaInViewport = document.querySelectorAll(‘.media’); observer = new IntersectionObserver((entries, observer) => { console.log(‘Next Media in Viewport’); entries.forEach((entry) => { if (entry.target && entry.isIntersecting) { entry.target.classList.add(‘active’); const closestParent = entry.target.closest(‘section’); if (closestParent) { const selector = closestParent.id; const ..
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