Client-server – A new way to execute logic on server
In client-server mode, your logic often requires resources hosted on the server. To run code on the server, you are used to writing dedicated project ...
April 29, 2026
1 min read
Classes
Stricter class-based typing for objects
With 4D 20 R10, object typing takes a major step forward, giving you more confidence and control in your code. Instead of simply checking if a value i...
July 16, 2025
1 min read
Use class in embedded web area with $4d
With 4D 20 R9, 4D introduces new commands that allow developers to define an object context for $4d, ensuring only specific functions are exposed. Pre...
April 24, 2025
1 min read
Energize your Web applications with the OutgoingMessage Class
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...
November 14, 2024
1 min read
Introducing Session Singletons
Singletons have been one of the standout features of 4D 20 R5. Previously, developers could leverage two types of singletons: the process singleto...
November 14, 2024
1 min read
REST and Qodly Support of Singletons
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...
September 5, 2024
1 min read
Using Classes Across Components
Component developers frequently require the utilization of a class from another existing component. With 4D 20 R6, when a component has a declared na...
July 17, 2024
1 min read
Class property declarations and assignments on a single line
In 4D 20 R5, the streamlined property declaration now offers the convenience of initializing properties simultaneously with their declaration, a...
May 7, 2024
1 min read
Shared Classes
Do you want a simplified way to use shared objects, following the classic object syntax and automatically calling use/end use when needed? Fasten you...
May 2, 2024
1 min read
Singletons in 4D
4D 20 R5 delivers a powerful feature for developers: Singletons! The singleton design pattern creates a single instance of a class accessible through...
May 2, 2024
1 min read