Design application logic with strong typing, object oriented principles, structured error handling, and modular class architecture. Write clear, maintainable code that works consistently across desktop, web, REST, and client server environments.
In today's digital world, a smooth and intuitive user experience is key to any web application's success. A critical part of this experience is provid...
Singletons have been one of the standout features of 4D 20 R5. Previously, developers could leverage two types of singletons: the process singleto...
With 4D 20 R7 you can say goodbye to "Compiler_" methods and embrace more freedom in how and where you declare your variables. Save time by staying fo...
Managing processes and sessions is essential for optimizing and monitoring your 4D applications. You can easily manipulate and retrieve crucial inform...
We are excited to announce a new feature that will enhance the user experience in multi-window applications in 4D 20 R7. With the introduction of the ...
In previous posts, we explored embedding documents within PDF/A-3 files using 4D Write Pro, including generating electronic invoices. As e-invoicing b...
With 4D 20 R5, we released singletons. And with 4D 20 R6, we now allow you to directly call the exposed functions of your shared singletons through RE...
Warnings are a valuable aid for alerting 4D developers to potential code mistakes. With the release of 4D 20 R6, it is now possible to globally define...
Objects have become an essential part of the 4D language and of Qodly. But when you declare a variable of this type, you define a reference. So, how ...
Component developers frequently require the utilization of a class from another existing component. With 4D 20 R6, when a component has a declared na...
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