Find The Vertical Position Of Scrollbar Without Jquery

Scrolling through a webpage is a common action that users perform every day, but have you ever wondered how you can find the vertical position of the scrollbar without using jQuery? In this guide, we'll explore how you can achieve this using simple JavaScript code.

To begin, let's understand the basics. When you scroll down a webpage, the vertical position of the scrollbar changes based on how far you've scrolled. Knowing this position can be useful for many applications, such as triggering animations, loading more content dynamically, or tracking user behavior.

To get started, you can use the `scrollY` property of the `window` object in JavaScript. This property returns the number of pixels that the document has already been scrolled vertically. You can access it like this:

const scrollPosition = window.scrollY;

By storing the value of `scrollY` in the `scrollPosition` variable, you can now use this information in your code to perform various actions based on the user's scrolling behavior.

Another approach is to use the `scroll` event listener in JavaScript. This event is triggered every time the document is scrolled. By listening to this event, you can update the vertical position of the scrollbar in real-time.

Here's an example of how you can achieve this:

window.addEventListener('scroll', function() {
    const scrollPosition = window.scrollY;
    console.log('Vertical Scroll Position:', scrollPosition);
});

In this code snippet, we attach an event listener to the `scroll` event on the `window` object. Whenever the user scrolls the webpage, the callback function is executed, displaying the current vertical scroll position in the console.

If you need to access the vertical position of the scrollbar at a specific moment, you can combine the `scroll` event listener with a function to get the position on demand:

function getScrollPosition() {
    return window.scrollY;
}

// Call the function whenever you need to get the scroll position
const currentPosition = getScrollPosition();
console.log('Current Vertical Scroll Position:', currentPosition);

By encapsulating the logic in a function like `getScrollPosition`, you can easily retrieve the vertical scroll position whenever required in your code.

In conclusion, understanding how to find the vertical position of the scrollbar without relying on jQuery is a valuable skill for web developers. Using native JavaScript methods such as `scrollY` and `scroll` event listeners allows you to create more efficient and lightweight solutions for tracking and responding to user scrolling behavior on your website. Next time you need to work with scroll positions in your projects, remember these simple techniques to enhance the interactivity and user experience of your web applications.