Get Scroll Position With Reactjs

Scrolling is a common interaction in web development, allowing users to navigate through content seamlessly. When working with ReactJS, you may encounter scenarios where you need to access the scroll position to implement specific features or functionality. In this article, we will explore how you can easily get the scroll position using ReactJS.

To begin, we can leverage the `useRef` and `useEffect` hooks provided by React to create a functional component that tracks the scroll position.
Here's a simple example to get you started:

Jsx

import React, { useRef, useEffect } from 'react';

const ScrollPosition = () =&gt; {
  const scrollPosition = useRef(0);

  useEffect(() =&gt; {
    const handleScroll = () =&gt; {
      scrollPosition.current = window.scrollY;
      console.log(scrollPosition.current); // You can access scrollPosition.current for the scroll value
    };

    window.addEventListener('scroll', handleScroll);

    return () =&gt; {
      window.removeEventListener('scroll', handleScroll);
    };
  }, []);

  return <div>{/* Your component JSX here */}</div>;
};

export default ScrollPosition;

Let's break down the code snippet above. We first import `useRef` and `useEffect` from the React library.
Inside the functional component `ScrollPosition`, we initialize a `scrollPosition` variable using the `useRef` hook and set its initial value to 0.

In the `useEffect` hook, we define a function `handleScroll` that updates the `scrollPosition.current` value to `window.scrollY`, which represents the vertical scroll position in pixels.
We then listen for the `scroll` event on the `window` object and call `handleScroll` whenever the user scrolls the page.

By accessing `scrollPosition.current`, you can retrieve the current scroll position and use it within your component as needed. This simple technique opens up a range of possibilities for creating dynamic and interactive user experiences in your React applications.

Remember to clean up the event listener by removing it in the cleanup function returned by the `useEffect` hook to avoid memory leaks and ensure optimal performance.

So, the next time you find yourself in need of accessing the scroll position in a ReactJS project, fear not! With the power of hooks and event listeners, you can easily retrieve and utilize this vital information to enhance your web applications.

I hope this article has been helpful in guiding you on how to get the scroll position with ReactJS. Happy coding!

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