Filter Data in HTML Table Using Three Dropdowns

Learn how to enhance your HTML table filtering with three dropdowns for country, age, and gender using JavaScript and jQuery.
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Filter Data in HTML Table Using Three Dropdowns

When it comes to displaying data interactively, filtering tables based on user selections is a common requirement. If you're new to JavaScript and jQuery, you might have found it challenging to implement a filtering function that uses multiple dropdowns to refine displayed results. In this guide, we'll guide you step-by-step through the process of filtering an HTML table using three dropdown lists: country, age, and gender.

Understanding the Problem

You have a table that you'd like users to filter based on their selections from three dropdowns. Initially, you have implemented filtering using two dropdowns (country and age), but you encountered issues when trying to add a third dropdown for gender. Let's resolve this by enhancing the existing code!

The Existing Code

You already have a working solution for filtering based on country and age using the following dropdowns:

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

Your JavaScript code listens for changes in either of the dropdowns and filters table rows accordingly.

Adding the Third Dropdown

To include gender as a third filtering option, we will follow these steps:

Step 1: Extend the HTML

First, add a new dropdown for gender to your HTML:

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

Step 2: Modify the JavaScript

Next, you'll need to update your JavaScript code to accommodate the new dropdown. Here is how you can modify your script:

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

Step 3: Enhance the SearchData Function

We now need to tweak the SearchData function to account for the new gender filter:

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

Complete Example

Here’s how your complete HTML structure would look:

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

Conclusion

Filtering an HTML table using multiple dropdowns can significantly enhance the user experience by allowing users to easily find specific information. By following the steps outlined in this post, you've now implemented a robust filtering system for country, age, and gender.

Feel free to experiment with additional dropdowns or other filtering criteria to further enhance your table's functionality. Happy coding!