How to Manage URL Hash Using JavaScript and HTML

Learn how to efficiently add and remove div IDs from the URL hash with JavaScript. This article will guide you through the solutions step-by-step.
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Managing URL Hashes in JavaScript

In web development, it often becomes necessary to manipulate the URL for different purposes, including tracking which section of a page a user is viewing. A common requirement is to update the URL with ID references when a user clicks on certain elements, such as divs. However, managing the URL hashes can be tricky, especially when the same event triggers both the addition and removal of hash values. This post explores how to add a div's ID to the URL upon clicking it and then remove that ID when a close button is clicked.

Problem Overview

You have a series of div elements with the class speakers--card. When any of these divs is clicked, the objective is to add its ID to the URL as a hash (e.g., -id). However, each div also has a close button (with class speakers--overlay-close), which should clear the hash from the URL when clicked. The challenge is to implement both functionalities while ensuring that clicking the close button does not inadvertently re-add the hash.

Solution Breakdown

Here’s a breakdown of the solution for achieving this functionality effectively.

Step 1: Identifying Elements

You need to select your divs and the close button correctly:

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

Step 2: Adding Click Event to Divs

When a user clicks on one of the speaker cards, you want to add its ID to the URL as a hash. You can do this by adding an event listener to each of the divs:

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

Step 3: Handling the Close Button

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

Full JavaScript Implementation

Combining all the pieces together, here’s the complete code to solve the problem:

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

Conclusion

Manipulating the URL hash in your web applications can improve user experience by making navigation easier and more intuitive. By using event handling and propagation control, you can confidently manage changes to the URL while maintaining clarity in user interactions. Using the approach outlined in this post, you can effectively add and remove hash values as required.

With this knowledge, you are now equipped to manage URL hashes in your projects seamlessly! If you have any questions or need further clarifications, feel free to comment below.