Скачать или смотреть How to Combine Multiple jQuery Functions into One Efficient Function

Discover how to streamline your jQuery code by merging multiple functions into a single function. Learn tips and best practices for easier maintenance and improved performance.
---
This video is based on the question https://stackoverflow.com/q/63169296/ asked by the user 'Lee Wyncent' ( https://stackoverflow.com/u/11496180/ ) and on the answer https://stackoverflow.com/a/63169355/ provided by the user 'Rory McCrossan' ( https://stackoverflow.com/u/519413/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to make multiple jquery functions into just one function?

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Combine Multiple jQuery Functions into One Efficient Function

If you are working with jQuery, you might find yourself writing repetitive code for similar actions. For instance, if you have multiple tables that trigger AJAX requests on click, you may end up with largely duplicated functions. This not only creates clutter in your code but also makes it harder to maintain. In this guide, we’ll explore how to efficiently combine multiple jQuery functions into one, simplifying your code and improving performance.

The Problem

Consider the following initial setup, where we have two tables, tableA and tableB, each with its click event handlers that send an AJAX request and process the returned data:

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

As you can see, the two functions share a lot in common: they use AJAX to request data from the same URL with similar success handlers. This begs the question: how can we consolidate these functions into one?

The Solution

To combine these functions, we can employ a few techniques that allow us to streamline our code.

Step 1: Combine Selectors

By creating a single click event handler for both tables, we can initiate the same AJAX request for both tables, using a shared success function. Here’s how you can do it:

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

Step 2: Dynamic Behavior with Data Attributes

If your tables require different logic after the AJAX call, you can utilize data attributes to specify the function to be called for each table. This way, you can dynamically manage which function should run based on which table is clicked.

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

Step 3: HTML Setup

Set up your tables in HTML with data-func attributes to link to the right function:

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

Best Practices for Code Maintenance

Use Classes Instead of IDs: Instead of assigning unique IDs for each table, consider using a common class for all the tables. This makes your code more scalable. If you need to add another table, you simply need to include it in the HTML, and your jQuery code will still work seamlessly.

Keep Code DRY (Don't Repeat Yourself): Consolidating your event handlers when they share common behavior not only makes the code shorter, but it also reduces the potential for errors and increases maintainability.

Conclusion

By effectively combining jQuery functions into a single handler, you can significantly reduce redundancy in your code while maintaining clarity and functionality. Whether using common selectors or leveraging data attributes for dynamic behavior, these strategies will help you write cleaner, more efficient code.

Next time you find yourself duplicating function definitions in jQuery, remember these tips to streamline your coding process!