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Trigger a Function when Scrolling to an Element in React with Intersection Observer
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Learn how to trigger functionality whenever someone scrolls to an HTML element in React with the browser's Intersection Observer API.
We'll walk through using the useRef hook to access a DOM node, using the Intersection Observer to detect if that element is visible inside of the useEffect hook, storing it's visibility in useState, using a hook library, and triggering CSS animations when scrolling down a page.
🧐 What's Inside
00:00 - Intro
00:13 - What tools we'll use like Intersection Observer and React
03:01 - Using the useRef hook to access a reference to an HTML DOM node
03:38 - Accessing a Ref in React with useEffect
04:35 - Detecting HTML element visibility with Intersection Observer
06:24 - Storing element visibility state with the useState hook
07:57 - Installing React Intersection Observer hook to simplify code
09:23 - Triggering a CSS animation when scrolling to an element
11:59 - Outro
🗒️ Read More
💾 Code
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🐦 Get updates straight to your Twitter @colbyfayock
📸 Catch the next stream live on Twitch @colbyfayock
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🧰 More Resources
Demo Landing Starter
Intersection Observer
React Intersection Observer
🎼 Music
Music from Uppbeat (free for Creators!):
License code: LBXM57TITUFTCUND
#colbyfayock #intersectionobserver #reactjs #react #reactjstutorial #nextjs #javascript #webdevelopment
We'll walk through using the useRef hook to access a DOM node, using the Intersection Observer to detect if that element is visible inside of the useEffect hook, storing it's visibility in useState, using a hook library, and triggering CSS animations when scrolling down a page.
🧐 What's Inside
00:00 - Intro
00:13 - What tools we'll use like Intersection Observer and React
03:01 - Using the useRef hook to access a reference to an HTML DOM node
03:38 - Accessing a Ref in React with useEffect
04:35 - Detecting HTML element visibility with Intersection Observer
06:24 - Storing element visibility state with the useState hook
07:57 - Installing React Intersection Observer hook to simplify code
09:23 - Triggering a CSS animation when scrolling to an element
11:59 - Outro
🗒️ Read More
💾 Code
🔔 Subscribe for more tech and developer videos
🐦 Get updates straight to your Twitter @colbyfayock
📸 Catch the next stream live on Twitch @colbyfayock
✉️ Or a newsletter right to your inbox!
💝 Sponsor me for more free content like this!
🎥 Want to know what A/V equipment I use?
🧰 More Resources
Demo Landing Starter
Intersection Observer
React Intersection Observer
🎼 Music
Music from Uppbeat (free for Creators!):
License code: LBXM57TITUFTCUND
#colbyfayock #intersectionobserver #reactjs #react #reactjstutorial #nextjs #javascript #webdevelopment
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