Скачать или смотреть How to Fix Your Sticky Navigation Bar That Won't Release

Discover how to troubleshoot and resolve the issue of a `sticky` navigation bar in your web design that remains fixed when scrolling back to the top of the page.
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This video is based on the question https://stackoverflow.com/q/63642996/ asked by the user 'Peter' ( https://stackoverflow.com/u/14185578/ ) and on the answer https://stackoverflow.com/a/63643582/ provided by the user 'shrishail sh' ( https://stackoverflow.com/u/4806222/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Fix Your Sticky Navigation Bar That Won't Release

Have you ever encountered a situation while developing your website where the navigation bar sticks to the top of the page when you scroll down, but fails to return to its original position when you scroll back up? This can be frustrating, especially when your intention is to have a smooth-user experience.

In this guide, we'll explore why the sticky class remains active on your navigation bar and how to properly fix this issue.

The Problem Explained

You may have a functioning navigation bar that successfully sticks to the top as you scroll. However, the challenge arises when you scroll back to the top – the sticky state remains, preventing your navigation bar from returning to its original position.

What is Happening?

The core of the issue lies in how you're interacting with the navbar and using the scroll event listener:

navTop, which is supposed to store the original position of the navbar, gets reset to 0 with every scroll event.

Hence, the condition that checks the position of the page relative to navTop keeps the navbar stuck.

How to Solve This Issue

To ensure that the navigation bar can stick and later return back to its original position, avoid reassignment of certain values during the scroll event.

Here’s a step-by-step guide to resolving the issue:

Update Your JavaScript Function

Instead of continuously setting the navTop value inside the stickyNav function, we’ll assign it only once and use that fixed value throughout the scroll.

Define navTop outside the scrolling logic:
This allows navTop to capture the navbar's initial offset just once when the page loads.

Refactor Event Listener:
Move the scroll event listener outside of the function.

Here’s the revised JavaScript code:

[[See Video to Reveal this Text or Code Snippet]]

Complete Example in Action

Here’s how all the pieces fit together in a full HTML structure:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By properly structuring your JavaScript code and avoiding reassignment of critical variables on every scroll, you can effectively manage the behavior of your sticky navigation bar. Now, the navbar should perform as expected: sticking when you scroll down and smoothly returning when you scroll back up.

If you follow this guide, you'll have a fully functional sticky navigation that enhances your website's usability. Happy coding!