I am trying to invoke a callback via intersection observer.    I want the target to be style: "position: fixed" and move it via style.top.    I also specified the root element which is an ancestor of the target with style: "position: rela...
I need to detect if my iframe which is loaded from another domain is in viewport.  This works fine native in Chromem,Firefox and IE called Intersection Observer. However this is not working in Safari.   There has been created a polyfill for this: Git...
I'm very new to the IntersectionObserver API, and I've been experimenting with this code:  let target = document.querySelector('.lazy-load');  let options = {     root: null,     rootMargin: '0px',     threshold: 0 }  let obse...
Is there a way of storing a built-in javascript method in a variable to set different behaviour for when this method isn't available in certain browsers?    My specific case is for intersectionObserver which isn't available in Safari or older...
I've been working on a site and I decided to add a dark mode feature to it, I used the darkmode.js library to implement it , the library works on the principle of mix-blend-mode: difference. However, when I add a scroll animation to it using Inte...
My goal is to change position to a video element if the user scrolls further to the video element. I'm using Intersection Observer API because I need to handle the page scroll from an AdForm Banner/iFrame.  Here is my code:  function createObserv...
I am trying to observe the intersection at center of viewport, i have tried with passing negative values in rootMargin  rootMargin: '-45% 10% -45%'   but it doesn't seems to be working properly.  My requirement is to observe the intersect...
I need to create a list with drag and drop reordering in HTML/Js where overlap/intersection of elements is detected like here:    I'm currently looking at the Intersection Observer API to detect when list items are overlapping, but most tuts and...
I have a section on my page to which when user scrolls, an event fires. The solution uses IntersectionObserver which is perfect for my need. However, I would like to adapt the size of rootMargin of this observer, when the uses is already there.  Now...
I'm using the Intersection Observer API to track the visibility of multiple element on a web page. When an element becomes visible, a function callback() should be executed. The restriction: For each element, the function may only be executed onc...

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