All About Fix TypeError $.ajax is not a function While using the ajax function

All About Fix TypeError $.ajax is not a function While using the ajax function

Ajax (Asynchronous JavaScript and XML) is a popular web development technique used to create dynamic and interactive websites. Among its many applications, the $.ajax function is a crucial component that allows for the retrieval and manipulation of data from a server without the need for a page refresh. However, users may occasionally encounter a common error known as “TypeError $.ajax is not a function” while using this function. In this article, we will delve into the causes of this error and explore potential solutions to help web developers tackle it effectively.

Fix: TypeError: $.ajax is not a function While using the ajax function

Ajax (Asynchronous JavaScript and XML) is a widely used technique for building interactive and fast web applications. It allows for making asynchronous requests to the server, without having to reload the entire webpage. However, sometimes while working with the ajax function, you may encounter an error stating “TypeError: $.ajax is not a function”.

This error usually occurs when the jQuery library is not properly loaded or initialized. The ajax function is a part of the jQuery library and if it is not available, you will get this error.

There are a few possible reasons for this error and we will discuss them in detail along with their solutions.

1. jQuery Library is not loaded or initialized:
The ajax function is a part of the jQuery library, so if the library is not loaded or initialized properly, you will get the TypeError. To resolve this, make sure the jQuery library is included in your HTML file and is properly linked. You can check this by opening the browser’s console and looking for any error message related to jQuery.

2. Conflict with other JavaScript libraries:
If you are using multiple JavaScript libraries on your webpage, it is possible that there is a conflict between them. This can also result in the ajax function not being recognized. To avoid this, use jQuery’s noConflict() method to avoid any conflicts with other libraries.

3. Using a different version of jQuery:
Another reason for this error could be that you are using a different version of jQuery, which does not have the ajax function. Check the version of jQuery you are using and make sure it has the ajax function. You can also use the jQuery Migrate plugin to test compatibility with different versions of jQuery.

4. Syntax errors:
Sometimes, syntax errors in your code can also result in the ajax function not being recognized. Make sure your code is free of any syntax errors by checking the browser’s console. If there are any errors, fix them and try again.

5. Incorrect use of the function:
The ajax function takes in multiple parameters and if any of them are incorrect, it can result in the TypeError. Make sure you are using the function correctly and all the required parameters are passed in.

Once you have identified the cause of the error, you can fix it accordingly and the ajax function should start working as intended.

In conclusion, the TypeError: $.ajax is not a function can occur due to various reasons such as jQuery library not loaded, conflicts with other libraries, using a different version of jQuery, syntax errors, or incorrect use of the function. By following the steps mentioned above, you should be able to fix this error and continue using the ajax function for your web development needs.


In conclusion, the $.ajax function is a powerful tool for sending and retrieving data from a server. However, if not properly used, it can result in a TypeError with the message ” $.ajax is not a function”. This error can be caused by various factors such as incorrect syntax, missing libraries, or compatibility issues. To avoid this error, it is important to carefully review the code and ensure that all necessary libraries are included. Additionally, keeping up with updates and changes to the jQuery library can also help prevent this error. With proper usage and troubleshooting techniques, developers can effectively utilize the $.ajax function without encountering the TypeError.

Leave a Reply

Your email address will not be published. Required fields are marked *