How to use the useScrollPosition hook for tracking scroll position in Next.js



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The useScrollPosition hook is not a built-in hook in React or Next.js. However, you can create a custom hook to track the scroll position. To achieve this, you can use the useEffect hook to add an event listener to the scroll event and update the scroll position accordingly.

Here's an example of how you can create a custom useScrollPosition hook in a Next.js project:

  1. Create a new file for your custom hook, e.g., useScrollPosition.js.
jsx
// useScrollPosition.js
import { useState, useEffect } from 'react';

const useScrollPosition = () => {
  const [scrollPosition, setScrollPosition] = useState({ x: 0, y: 0 });

  const handleScroll = () => {
    setScrollPosition({ x: window.scrollX, y: window.scrollY });
  };

  useEffect(() => {
    // Attach the event listener when the component mounts
    window.addEventListener('scroll', handleScroll);

    // Clean up the event listener when the component unmounts
    return () => {
      window.removeEventListener('scroll', handleScroll);
    };
  }, []); // Empty dependency array ensures that the effect runs only once on mount

  return scrollPosition;
};

export default useScrollPosition;
  1. Now, you can use this custom hook in your Next.js components.
jsx
// YourComponent.js
import React from 'react';
import useScrollPosition from '../path/to/useScrollPosition';

const YourComponent = () => {
  const scrollPosition = useScrollPosition();

  // Now you can use scrollPosition.x and scrollPosition.y in your component

  return (
    <div>
      <p>Scroll X: {scrollPosition.x}</p>
      <p>Scroll Y: {scrollPosition.y}</p>
      {/* Your component content */}
    </div>
  );
};

export default YourComponent;

In this example, the useScrollPosition hook returns an object with x and y properties representing the scroll position. You can customize this hook based on your specific requirements.

Remember that adding too many scroll event listeners or performing heavy computations on scroll events might impact the performance, so use it judiciously.

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