Which best practice is recommended for creating and previewing a Pega gadget?

Creating and previewing a Pega gadget through the recommended best practice involves developing the gadget first and then previewing it. This approach allows developers to check for any immediate issues, refine the gadget's functionality, and ensure an optimal user experience before it is fully deployed. By previewing the gadget, developers can identify and address potential user errors early in the development process, thus enhancing the efficiency and effectiveness of the final product.

Developing directly on the server without testing can lead to complications since it may introduce errors into a live environment and make it challenging to debug issues. Testing only after deployment misses the opportunity to catch errors early and could lead to a poor user experience. Using third-party tools for gadget creation may not align with Pega's built-in functionalities and could introduce compatibility or support issues within the Pega platform. Therefore, creating and previewing the gadget is the most logical choice to ensure quality and usability.