React intersection observer example. Jan 27, 2021 · Hey maintainers.

React intersection observer example. Note: This approach is particularly useful if you want to show a different component or navigation design when the original non-sticky navigation becomes hidden. Having an issue with useInifiniteQuery and the observationObserver Hook I have been using sample useIntersectionObserver hook that is provided with the example of infinite scrollin Nov 26, 2023 · Because of this, I prefer to use a library for this. The solutions using scroll events always have issues similar to using scroll events for other purposes. Let’s create a new Create React App project using the following command: npx create-react-app intersection-observer-in-practice We’re going to write all the code inside our App component. Latest version: 9. Btw, if you learn better through videos, I highly suggest this youtube tutorial by Kewin Powell. Here is the live demo of infinite scroll implemented. Intersection Observer can be considered more performant than listening for scroll events on the main thread, as it is asynchronous, and the callback will only fire To leverage the power of the Intersection Observer API in a React application, developers often utilize the React Intersection Observerlibrary. The initObserver needs to be called at the top level of the react tree, such as in main. In this post, we'll dive into how to use the IntersectionObserver API in React. Feb 14, 2024 · Recently I had to solve a table-related problem for a React project. One of its exciting use cases is creating smooth and visually appealing scroll-and-snap effects. This tutorial demonstrates how to implement such effects using vanilla JavaScript and React. js apps leveraging Intersection Observer API. Start using @react-hook/intersection-observer in your project by running `npm i @react-hook/intersection-observer`. The provided code examples and step-by-step Sep 22, 2023 · Simplified implementation: React Intersection Observer provides intuitive components and hooks that abstract away the complexities of working directly with the Intersection Observer API. Jan 27, 2021 · Hey maintainers. `useInView` is a custom hook in ReactJS that utilizes the Intersection Observer API to observe changes in the intersection of a target element with an ancestor element or the viewport. Nov 29, 2023 · In this example, we use the "querySelectorAll" method to select all the elements of the "lazy" class and then loop through each element and call the "observe" method on the Intersection Observer object. When Data component starts rendering, it takes a while till receiving the data required for each Explore this online infinite scroll with intersection observer sandbox and experiment with it yourself using our interactive online playground. Provides insights into working directly with the JavaScript Intersection Observer API. We'll unravel the concept and make your React projects scroll seamlessly to infinity! What's Intersection Observer? According to the MDN docs, 'The Intersection Observer Observer Intersection observer With React Intersection observer With React 22 January 2022 Resizable A hook that uses Resize Observer API to monitor changes in the size of an element Mar 13, 2021 · javascript reactjs use-effect intersection-observer asked Mar 13, 2021 at 9:05 Kirasiris 551 11 42 react-intersection-observer is a React flavored version of the Intersection Observer API to tell you when an element enters or leaves the viewport. Mar 1, 2023 · react intersection observer package is the react implementation of the IntersectionObserver API. You will not build this application from scratch the starter code is here Aug 11, 2024 · The useInView hook, built on the Intersection Observer API, simplifies this task, making it easier to trigger animations, load content lazily, or perform other actions based on element visibility. To render the images and enable observation, we need to create an Image component, which enables us to use the observer. sh/ Features 🎣 Hooks or Component API - With useInView it's easier than ever to monitor elements ⚡️ Optimized performance React implementation of the Intersection Observer API to tell you when an element enters or leaves the viewport. Step 1: Setting Up the Project We’ll assume you already have a basic React app setup. I will assume knowledge around setting up and using React in your project but will go into some detail around Intersection Observer. In this comprehensive 3200+ word guide for intermediate React developers, we will code a reveal on scroll component from scratch using Intersection Observer. Jul 26, 2023 · To do so, we’ll use a library called React Intersection Observer. Here is a simple example that checks when the user has reached the end of the page: Jan 25, 2023 · Learn how to animate on scroll in your Next. Aug 22, 2010 · Monitor if a component is inside the viewport, using IntersectionObserver API 为了简化在 React 应用中实现 Intersection Observer，作者介绍了 react-intersection-observer 包。 这个包提供了一种简洁、符合 React 风格的方法来使用 Intersection Observer API。 接下来，作者详细解释了如何实现滚动显示动画和高亮滚动动画。 Jul 13, 2021 · The Intersection Observer API is a JavaScript API that enables us to observe an element and detect when it passes a specified point in a scrolling container — often (but not always) the viewport — triggering a callback function. To help you get used to working with the API in React. Checking if an element is partially visible Aug 2, 2023 · Written by Ibadehin Mojeed ️ The Intersection Observer API is a native API provided by modern browsers. May 15, 2024 · In this article, we'll learn how to use the Intersection Observer API with React, a popular JavaScript library for building user interfaces. Mar 22, 2019 · The Intersection Observer API allows asynchronous checking of the ratio of the intersection of an element with a viewport and will only fire a callback when the predefined threshold (s) are met. js app using React Intersection Observer and Tailwind CSS. Intersection Observer Jan 27, 2024 · We will use the useInView hook from the react-intersection-observer library to determine when the user has scrolled to the bottom of the page. Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing ' react-intersection-observer ' in functional components in JavaScript. This observer watches for changes in the intersection of the target element with the viewport and triggers a callback function whenever a change is detected. app Features 🪝 Hooks or Component API - With useInView it's easier than ever to monitor elements ⚡️ Optimized React implementation of the Intersection Observer API to tell you when an element enters or leaves the viewport. Feb 6, 2025 · The Intersection Observer API is a powerful tool for detecting changes in the visibility of an element relative to a viewport or a parent element. One common requirement is to determine whether Jul 29, 2024 · Intersection Observer is an API that is used to detect the interaction of a target element with its's ancestor element or the document viewport. Jun 24, 2024 · The Intersection Observer API allows us to easily check if two items are intersecting. Contribute to Apestein/better-react-infinite-scroll development by creating an account on GitHub. This library provides React components and hooks that simplify the integration of scroll-based interactions into React projects. tsx Includes examples of working with the React Intersection Observer library. For the next steps, you can dive into React Query's official documentation page to learn more advanced concepts. The choice between the two depends on personal preference and specific project Oct 16, 2023 · This article is about using the Intersection Observer API to enhance the visual experience of web applications. This library is designed to handle the functionality described above with less boilerplate code. e. - thebuilder/react-intersection-observer Sep 5, 2018 · A tutorial to learn about the Intersection Observer API in React. May 27, 2019 · For this particular example I’m going to be using React with their new hooks API but this can be easily adapted to work with other frameworks or vanilla JavaScript. Animations are internally provided by Emotion and implemented as CSS Animations to benefit from hardware acceleration. Use case: observe sections in an article and track the current viewed section in a navigation. We’ll cover: Benefits and metrics around infinite scroll How react-intersection-observer-example Edit the code to make changes and see it instantly in the preview Explore this online react-intersection-observer-example sandbox and experiment with it yourself using our interactive online playground. Contains both a Hooks, render props and plain children implementation. You can use it as a template to jumpstart your development with this pre-built solution. May 27, 2021 · Check out the code on GitHub to see the full version. Hey fellow developers, welcome back to a brand new video, today we'll see how to implement infinite scrolling in react using the Intersection Observer API. No external JavaScript or CSS libraries used in examples React implementation of the Intersection Observer API to tell you when an element enters or leaves the viewport. For this Jul 1, 2024 · July 1, 2024 / #React How to Create Infinite Scrolling in React Using the Intersection Observer API Kunal Nalawade Feb 24, 2024 · How use Intersection Observer API in React Introduction: In modern web development, creating responsive and dynamic user interfaces is crucial. When a div scrolls off the top of the viewport it gets absolutely positio Feb 27, 2023 · In this article, we covered how to implement Infinite Scroll using the React Query along with a very easy-to-use React Intersection Observer package. It comes with both a Hooks, render props and plain children implementation. . You will use React's ref API with createRef() to observe elements in your React application in context of the viewport React implementation of the Intersection Observer API to tell you when an element enters or leaves the viewport. It can be used in conjunction with the React. The main differences lie in the API design and additional features. app Features 🎣 Hooks or Component API - With useInView it's easier than ever to monitor elements ⚡️ Optimized Feb 6, 2021 · The Intersection Observer (IO) detects when an element enters or leaves the viewport (or a parent element). org For our design, IntersectionObserver can be a good fit because it can provide information about menu items that are overflowing the container (i. For example, if we want to detect if some element is visible in the viewport we can use this API for that purpose. We will see the usage of this API in both HTML/CSS projects and React applications. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. Using Intersection Observer API The Intersection Observer API provides a way to asynchronously observe changes in the intersection of a target element with an ancestor element or with a top-level document’s viewport. The intersection observer is set up to trigger the callback function when the element is intersecting with the viewport, which means it is visible on the screen. Jul 17, 2023 · Lazy Loading React Components on page-scroll using Intersection Observer API (hook and wrapper component) Amittras Pal Follow 6 min read React intersection observer example Edit the code to make changes and see it instantly in the preview Explore this online React intersection observer example sandbox and experiment with it yourself using our interactive online playground. Unlike traditional scroll event listeners, the Intersection Observer API Mar 30, 2021 · Why Intersection Observer? The Intersection Observer API provides a way to asynchronously observe changes in the intersection of a target element with an ancestor element or with a top-level document’s viewport. js using the Intersection Observer API and TypeScript is clear and concise. Find React Hook Intersection Observer Examples and Templates Use this online react-hook-intersection-observer playground to view and fork react-hook-intersection-observer example apps and templates on CodeSandbox. Why Use Intersection Observer? May 23, 2023 · In this example, we used the useRef hook to create a reference to the element we want to observe and the useEffect hook to set up the intersection observer when the component mounts. sh/ Features 🎣 Hooks or Component API - With useInView it's easier than ever to monitor elements ⚡️ Optimized performance Apr 1, 2022 · Introduce how to use Intersection Observer in React to improve performance. lazy function to render components on demand. This hook can be used to implement images Oct 15, 2021 · The Intersection Observer API provides a way to asynchronously observe changes in the intersection of a target element with an ancestor element or with a top-level document’s viewport. The easiest way to use this with React is to install the react-intersection-observer package, which will give us some nice hooks to work with: May 30, 2023 · Learn how to implement infinite scroll pagination in React apps using React-Query v3 and IntersectionObserver for seamless data loading and enhanced user experience. Through practical examples, you'll learn how to use IntersectionObserver to lazy load images, videos, and other content. The Intersection Observer API provides a way to asynchronously observe changes in the intersection of a target element with an ancestor element I think this means there is no way to solve my problem because the elements I want to monitor for overlap are not children of the root I am specifying in the options object. react-intersection-observer React implementation of the Intersection Observer API to tell you when an element enters or leaves the viewport. There are 880 other projects in the npm registry using react-intersection-observer. By leveraging the Intersection Observer API, it can greatly optimize performance and provide efficient, real-time updates for lazy-loading, infinite scrolling, or other visibility-dependent elements Jan 12, 2024 · The Intersection Observer API helps developers handle element visibility within the browser. 10. now. Mar 28, 2024 · The good news is that we don't need to rely on any external libraries to use this API with React. Monitor if a component is inside the viewport, using IntersectionObserver API. Tanstack react table is an open Sep 24, 2019 · I’ve seen examples of having an event of sorts for sticky positioning using both scroll events and the Intersection Observer. 2, last published: 2 days ago. The react-intersection-observer package provides a way to implement this API in a React react-intersection-observer React implementation of the Intersection Observer API to tell you when an element enters or leaves the viewport. Here's a basic example of a fade in A simple application that showcases how Intersection Observer API can be used in React with createRef (). React Awesome Reveal is a library for React apps written in TypeScript that adds reveal animations using the Intersection Observer API to detect when the elements appear in the viewport. By using the built-in React hooks, we can handle all the intersection observer functionality with ease. Note that in the example we're using Window as the root, which indicates that the observed target triggers changes when intersecting with the viewport, in this case Window. Use this online @react-hook/intersection-observer playground to view and fork @react-hook/intersection-observer example apps and templates on CodeSandbox. js using the react-intersection-observer library. Storybook Demo: https://react-intersection-observer. The useIntersectionObserver hook can be used to interact with the Intersection Observer API within React components. There are 1047 other projects in the npm registry using react-intersection-observer. We'll break down the process of creating the hook, explain its key features, and provide a detailed Oct 11, 2019 · I'm trying to track element visibility with React/Hooks and the Intersection Observer API. jsx. Find React Intersection Observer Examples and Templates Use this online react-intersection-observer playground to view and fork react-intersection-observer example apps and templates on CodeSandbox. This guide will walk you through implementing infinite scroll in a React app with TypeScript, using the Intersection Observer API for efficient detection when more content needs to load. This API allows you to observer intersections of elements, and Jul 5, 2019 · Create section navigation with React and Intersection Observer Introduction For one of the last project at work, I had to create a section based navigation. It turns out there is an library, react-inteserction-observer, that lets you use the IntersectionObserver API in a idiomatic way in React. ️ Free Tutorial GitHub View Github Jul 12, 2019 · I'm trying to test a component that has a child component that includes react-intersection-observer but I always get an error I tried to import the library but it Example project using the Intersection Observer api with Reddit's public api to create infinite scrolling - RowanCarmichael/react-intersection-observer-example Start using react-intersection-observer in your project by running `npm i react-intersection-observer`. When the target element intersects with the viewport, the onIntersection callback function is executed, allowing you to respond to the event in your code. In Javascript, performing an action 3 days ago · At Timing element visibility with the Intersection Observer API, you can find a more extensive example showing how to time how long a set of elements (such as ads) are visible to the user and to react to that information by recording statistics or by updating elements. Use this online intersection-observer playground to view and fork intersection-observer example apps and templates on CodeSandbox. Initial markup for the React Intersection Observer example - LandingPage. Mar 23, 2024 · If so, you're in the right place! In this series, we'll explore the power of the IntersectionObserver API and how it can be used to create fast and responsive React apps. Click any example below to run it instantly or find templates that can be used as a pre-built solution! Jul 25, 2023 · Resources GitHub repo with code example above ☝️ Intersection Observer API docs YouTube video with explanation and example of Intersection Observer API usage. This package allows us to use the API with hooks, render props, and even plain children. Sep 24, 2018 · Infinite scroll in React made easy with Intersection Observer When we want to do infinite scroll list what will get strike in our mind is that let’s listen for scroll event, when the scroll reach … Jan 14, 2025 · React Code Interview 001: Intersection Observer API 101 Exploring the power of IntersectionObserver and why it’s a must-know for React interviews. It can be used to easily add animation on scroll without external libraries. Apr 17, 2024 · The initObserver function initializes the observer object, the body of the observerCallback function will be completed later. It is fully declarative and takes care of all the imperative parts for you. Jun 15, 2023 · Great article, Satyam! Your explanation of lazy loading components in Next. We covered the fundamentals of using the Intersection Observer API in React, from setting up your environment to adding styles and functionality in this tutorial. The first challenge was to have an infinitely scrollable table using an open-source library. Explore this online React IntersectionObserver Sample sandbox and experiment with it yourself using our interactive online playground. Practical, real world React examples of IntersectionObserver APIExamples use only IntersectionObserver API. This will trigger the fetching of more data. vercel. Bring ReactIntersectionObserver over today, your React children will love it! React Intersection Observer is a React component, acting as a wrapper for the IntersectionObserver API. Slide On Show Component Lets establish what are the requirements for the component, and how we can customize its behavior with props. Feb 1, 2024 · In this blog post, we'll explore how to use the Intersection Observer in a React app. React implementation of the Intersection Observer API to tell you when an element enters or leaves the viewport. In this post, we'll dive deep into leveraging the Intersection Observer API within a React application, exploring practical use cases, best practices, and implementing advanced features. Make sure to clean up the IntersectionObserver you Description: The useIntersectionObserver hook is useful because it provides a straightforward, built-in method for tracking the visibility and position of a DOM element in relation to the viewport. Mar 3, 2024 · Dive into the world of infinite scrolling in React applications using the powerful React Query library, exploring its setup, performance optimization, and real-world applications. Discover how to seamlessly implement infinite scrolling with detailed guides on using the useInfiniteQuery hook and integrating the Intersection Observer for an enriching user experience. react-intersection-observer React component that triggers a function when the component enters or leaves the viewport. Feb 26, 2019 · I have the component below, when im testing i used your trick to mock react-intersection-observer everything work well but this time useEffect triggers twice the one with the inView === true i cant figure it out i need help, thank you. Apr 15, 2020 · The react-intersection-observer package is an easy way to work with the Intersection Observer API in React. And from While there are many libraries out there for intersection animations, you can also use the INTERSECTION OBSERVER API in JavaScript. However, I can't figure out how to set up observation with "useEffect". The direction for the slide can be vertical or horizontal. not Aug 25, 2024 · Time on page improved by 26% Scroll depth increased 19% CTR on ads rose 15% But without care, poorly implemented infinite scroll can hog resources and degrade performance. to Jun 16, 2025 · In this article, we’ll explore what the Intersection Observer API is, why it matters, and how to implement it effectively in React applications with practical use cases. Background: I built an infinite scroller using intersection observer for the purpose of re-using dom nodes (aka windowing). React Intersection Observer is good at: reusing instances: comparing the passed options performance: chooses smartly when to re-render and Aug 25, 2019 · This article demonstrates using the Javascript Intersection Observer API, instead of measuring scroll position, to perform common visibility detection tasks. In this video, you will learn a very basic implementation of Intersection Observer in React. You can find example implementations in the examples folder of the package repository. Custom hook that tracks the intersection of a DOM element with its containing element or the viewport using the Intersection Observer API. It’s a highly performant method for implementing tasks like lazy loading of images, infinite scrolling, or triggering animations when an element enters the viewport. In this blog post, I'll be your guide in understanding infinite scrolling for React. Follow our step-by-step guide with code examples. Enhance performance and user experience—read the article now! Sep 4, 2024 · The Intersection Observer API opens up new possibilities for creating immersive scroll experiences. Click any example below to run it instantly or find templates that can be used as a pre-built solution! Mar 23, 2023 · You can add an extra layer of interactivity to your web applications by implementing reveal-on-scroll effects in React with this API. Feb 3, 2025 · Learn to optimize rendering in your applications using the React Intersection Observer hook. Oct 7, 2023 · Have you ever felt that the information about implementing infinite scrolling in React is often confusing or incomplete? You're not alone. In this comprehensive guide, you’ll learn how to implement smooth, optimized infinite scroll in Next. Nov 13, 2024 · Infinite scrolling is a powerful user experience technique where more content loads as the user scrolls down. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. — developer. js import{useInView}from'react-intersection-observer'exportdefaultfunctionApp(){const{ref:target,inView} = useInView()return(<divref Sep 25, 2024 · In this tutorial, I’ll show you how to implement different sticky navigation in Next. Sep 6, 2024 · Intersection observer API is a powerful tool in modern web development where we can efficiently detect when an element enters or leaves the viewport or root element. So what are the common issues when implementing infinite scroll? Intersection Observer Example A modern web application built with React, Tailwind CSS, and TypeScript, compiled using Vite, that demonstrates the power of the Intersection Observer API to create seamless and efficient user experiences. Feb 20, 2024 · Explore 3 use cases for working with the React Intersection Observer: lazy loading, infinite scrolling, and animation/transition triggers. Intersection Observer - Infinite Scrolling Reddit Example- Jul 1, 2024 · One such powerful tool is the Intersection Observer API, designed to detect when elements intersect with the viewport or a parent element. Jan 10, 2022 · Lazy loading, infinite scrolling, scroll based animations, and performant scroll events are all perfect examples of Intersection Observer in action. Jun 26, 2018 · React Intersection List builds on top of React Intersection Observer, using a sentinel in the DOM to deliver a high-performance and smooth scrolling experience, even on low-end devices. react-intersection-observer offers a more modern hook-based approach, while react-intersection-observer uses a render prop pattern. mozilla. May 7, 2021 · However, you can easily use the Intersection Observer API with any framework or library you want. No complex configuration needed, just wrap your views and it handles the events. Apr 4, 2021 · npm i framer-motion react-intersection-observer The first look at our component will be 2 divs with a hight of 100vh each, and any background you like to make a differentiation. import { useInfiniteQuery } from "@tanstack/react-query"; import React, { useState } from "react"; The answer lies in leveraging the Intersection Observer API – a modern, efficient technique to detect when an element enters or exits the viewport. React Intersection Observer is a React component and hook for the Intersection Observer API. You may check out the related API usage on the sidebar. Let’s re-write the previous example using its useInView hook: App. However, implementation in React requires an understanding of its core concepts and integration with hooks. IO is asynchronous and much more performant than scroll listeners 👍. Mar 25, 2025 · The Intersection Observer API provides a way to asynchronously observe changes in the intersection of an element with a viewport or a parent element. Click any example below to run it instantly or find templates that can be used as a pre-built solution! The following examples show how to use react-intersection-observer#InView. Start using react-intersection-observer in your project by running `npm i react-intersection-observer`. import React from 'react' import { useInView } from 'react-intersection-observer' const Component = () => { const [ref, inView, entry] = useInView ( { /* Optional options */ threshold: … Continue reading May 22, 2021 · I will be focusing on using Intersection Observer in conjunction with React to create a simple navigation menu that updates its selected value when the user scrolls the page. What is Intersection Observer API? (with a working example) The Intersection Observer API provides us with a way to take some action asynchronously whenever a particular element that we are observing useInView HookInView Component May 14, 2018 · react-intersection-observer React component that triggers a function when the component enters or leaves the viewport. Learn about the React intersection observer and how to use it. Example a target within a scrollable frame and iframes to behave correctly. As a fan of TypeScript I will also be using TypeScript. Mar 27, 2024 · Understanding the IntersectionObserver API syntax The IntersectionObserver API works by creating an observer object that is tied to a specific element on the page. Both libraries provide similar functionality for detecting element visibility using the Intersection Observer API. We'll be building a mini project to Dec 29, 2023 · In this article, we’ll use the react-intersection-observer library, a React implementation of the Intersection Observer API. How the Intersection Observer API Works A Basic Example Jan 19, 2023 · For example, you can specify a threshold value to control when the component should be considered visible or add a root margin to adjust the boundaries of the viewport. - thebuilder/react-intersection-observer Sep 25, 2023 · Implementation in React Lets encapsulate the Intersection Observer logic in a react component that slides in horizontally or vertically when scroll to it. Click any example below to run it instantly or find templates that can be used as a pre-built solution! Jan 10, 2023 · This callback function is called with an array of intersection observer entries, which contain information about the element being observed (in this case, the bottom of the page). Explore these practical examples to see how React Intersection Observer Kit can help you in different scenarios. It empowers us to detect the visibility of an element relative to the viewport of the browser — or in some cases, relative to its containing element — with the aim of performing a certain action. In conclusion, using the IntersectionObserver API or react-intersection-observer package allows us to implement lazy loading in React components. Feb 23, 2023 · I got a list based on I render list items I want to track which elements overflows container (especially index of first elements that overflew) in order to do this I wanted to use react-intersection-observer library. We'll reveal and highlight items with animations that occur on scroll. js/React. See full list on dev. Complete guide to infinite scroll in React. Jan 22, 2022 · Intersection observer With Reactreact-intersection-observer Package ? Copy and Paste the Framer Package Usage Follow the step by step tutorial for this package. There are 8 other projects in the npm registry using @react-hook/intersection-observer. We'll start by briefly covering the basics of the Intersection Observer API and its benefits. Elevate Dec 13, 2018 · I have a react component Data which includes several charts components; BarChart LineChart etc. Jul 25, 2023 · With the react-intersection-observer package, we can create a dynamic header and improve the navigation experience within content-rich pages. This The Intersection Observer Web API is used to detect when an element moves into the viewport. It provides a simplified, React-compatible interface to identify when a component enters or leaves the viewport. Jun 30, 2024 · The `useIntersectionObserver` hook facilitates tracking the visibility of a specified DOM element using the Intersection Observer API. One observer has one set of thresholds and one root, but can watch multiple target elements for visibility changes in keeping with those. The one that will highlight the correct navigation item when you scroll to the particular section of the page. In this article, you'll find practical code implementations and real-world use cases, demonstrating how the custom hook can be applied in various scenarios. Apr 22, 2024 · Enhancing Performance While the Intersection Observer API is already highly performant, there are a few best practices we can follow to optimize our reveal on scroll animations further: Reuse Observers: Instead of creating a new Intersection Observer for each section, we can create a single observer and reuse it for multiple sections. The following examples show how to use react-intersection-observer#useInView. Reactive intersection observer. After doing some reading and research I figured I could use Intersection Find React Intersection Observer Hook Examples and Templates Use this online react-intersection-observer-hook playground to view and fork react-intersection-observer-hook example apps and templates on CodeSandbox. Learn how to implement infinite scrolling in NEXT. Then, we'll look at a practical example of using it with React to animate a component. In this comprehensive 3300-word guide, you’ll master implementing performant reveal effects in React using Intersection Observer. Jun 24, 2025 · The observe() method of the IntersectionObserver interface adds an element to the set of target elements being watched by the IntersectionObserver. Custom Hook in React Let’s create a custom hook in React that will use the Intersection Observer API to check when an element enters the viewport. It provides a simple way to detect when an element enters or leaves the viewport, enabling efficient implementation of lazy loading, infinite scrolling, and other visibility-based features in React applications. js with React Intersection Observer, creating a seamless user experience with code samples and step-by-step instructions. ipqic cbjr fsmof cgsi zjav wnnqp zbejszu tcd umxccyt koufouh