How to Get Scroll Position with ReactJS - Easy Javascript Solution

├Źndice
  1. Introduction
  2. Getting the Scroll Position
  3. Conclusion

Introduction

When building a website or web application, it's important to have control over the scroll position of the page. In ReactJS, there are a few different ways to get the scroll position, but in this article, we'll cover an easy and straightforward solution using Javascript.

Getting the Scroll Position

To get the scroll position in ReactJS, we can use the Javascript function window.pageYOffset. This function returns the number of pixels that the document is currently scrolled from the top.

We can create a state variable in our React component to store the current scroll position. To update this state variable when the user scrolls the page, we can add an event listener to the window object.

Here's an example of how to implement this solution:

{`import React, { useState, useEffect } from 'react';

function App() {
  const [scrollPosition, setScrollPosition] = useState(0);

  useEffect(() => {
    function handleScroll() {
      const position = window.pageYOffset;
      setScrollPosition(position);
    }

    window.addEventListener('scroll', handleScroll);

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

  return (
    

My App

Scroll position: {scrollPosition}

); } export default App;`}

In this example, we create a state variable called scrollPosition using the useState hook. We also use the useEffect hook to add an event listener to the window object when the component mounts.

The handleScroll function is called whenever the user scrolls the page. It updates the state variable scrollPosition with the current scroll position.

Finally, we render the current scroll position in the <p> tag.

Conclusion

Getting the scroll position in ReactJS is easy with Javascript. By using the window.pageYOffset function and a state variable, we can track the user's scroll position and update our application accordingly.

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