Скачать или смотреть How to Check if jQuery load() is Empty

Discover how to check if the jQuery `load()` function returns an empty element, with a step-by-step guide and useful code snippets.
---
This video is based on the question https://stackoverflow.com/q/62926373/ asked by the user 'Peanuts' ( https://stackoverflow.com/u/56717/ ) and on the answer https://stackoverflow.com/a/62926534/ provided by the user 'Dong Nguyen' ( https://stackoverflow.com/u/10844075/ ) 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 check if jQuery load() is empty?

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 Check if jQuery load() is Empty: A Simple Guide

In web development, jQuery’s load() function is a powerful tool for dynamically loading content from a server. However, there may be times when you need to check whether the content loaded is empty. This can help prevent issues in your application where the expected content does not load, leading to unresponsive or broken layouts.

In this post, we will explore a straightforward method to determine if the content loaded using jQuery’s load() function is empty. Let’s dive in!

Understanding the Problem

You may encounter a situation where you’re using jQuery to load content from a URL like this:

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

While this code attempts to load the first child of an element from a specified URL, it does not inherently check if the loaded content is empty. Without this check, you may end up working with an empty element, which could cause problems in your user interface.

Solution Overview

To check if the load() function has returned an empty element, you can follow these steps:

Reference the Element: Get the reference to the element you want to load content into.

Check for Content: After loading, verify if the element has any content.

Let’s break down the solution with some code snippets to make it clearer.

Step-by-Step Code Explanation

Step 1: Set Up the Element Reference

First, you need to define the element where the content will be loaded. Here is how you can do this:

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

Step 2: Use the load() Function

Next, invoke the load() function on your defined element. In the context of our example, it should look like this:

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

Step 3: Check if the Loaded Content is Empty

After the loading process, ensure that the content loaded is not empty. You can check the length of the children of your element like this:

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

Complete Example

Putting it all together, here’s how the complete code would look:

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

Conclusion

By following the steps above, you can effectively check if the content returned by jQuery’s load() function is empty. This simple yet crucial check can help prevent interface issues and improve the overall user experience of your application.

Feel free to adapt and modify the provided code based on your specific use case. Happy coding!