How to Perform a Real Time Search and Filter on a HTML Table
Create an easy-to-use search tool that filters out an HTML table using a combination of JavaScript's keyup
event and simple DOM manipulation.
Add an input for search terms:
This code supports real-time, responsive, and quick search results. As the user types, the table immediately updates.
Optimizing and Handling User Input
Advanced Performance Optimization
While the keyup
event will keep your search up-to-date, without optimization, it could result in lag and excessive DOM manipulations. We tackle it by:
- Introducing debouncing to wait a bit before executing the function, preventing too many operations and providing a smoother experience.
- Using
indexOf
and transforming all text data to upper case (toUpperCase
) makes the search case-insensitive—a seamless user experience, indeed.
Sanitizing User Inputs
Ensure to sanitize and trim the search string before performing the search to avoid getting hung on unintended search results or extra white spaces.
Using Regular Expressions for Flexibility
Introduce Regular Expressions for complex searches like wildcard matching or loose matching:
Efficient and Accessible Search
Reduce Overhead and Enhance Accessibility
By utilizing smart DOM handling, you can reduce overhead and increase execution speed:
- Cache elements, such as your table or rows, to avoid repeated DOM queries.
- Accessible functions enhance screen reader support, ensuring all users feel welcomed.
Navigation and Speed
User-Friendly Features
Improve navigation by adding features like a counter stating the number of matches found and displaying only results after a minimum count of characters typed.
Fast and Maintainable Functions
Making a function reusable by tying it to different tables creates more flexible, maintainable code.
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