Coding⏱️ 2 min read📅 2026-06-03

How to Fix: Should I use .done() and .fail() for new jQuery AJAX code instead of success and error

Use .done() and .fail() for new jQuery AJAX code instead of success and error for cleaner and more readable code.

Quick Answer: Replace success and error callbacks with .done() and .fail() to improve code organization and readability.

In modern jQuery AJAX code, it's highly recommended to use the .done() and .fail() methods instead of the traditional success and error callbacks. This change is largely due to the introduction of .done() in jQuery 1.3, which provides a more intuitive way to handle asynchronous operations.

Why This Happens

  • Using .done() and .fail() provides a clearer separation of concerns between the asynchronous operation and the callback functions.

How to Resolve This Issue

Method 1: Using .done() and .fail()

  1. Step 1: Replace the success callback with a .done() method.

Method 2: Using .fail()

  1. Step 1: Replace the error callback with a .fail() method.

Final Words

By adopting this change, you'll make your code more readable, maintainable, and future-proof.

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