Create a BLOB attribute in an object
With the introduction of classes in the 4D environment, the need to store your data in objects, and especially blobs, has increased. That's why 4D v19...
July 20, 2021
1 min read
4D Language
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.
Encrypt your own data with the 4D algorithm
As you may have noticed some time ago, 4D offers you a simple way to encrypt your data. Now, 4D also allows you to use the same algorithm as the one u...
April 28, 2021
1 min read
Code Editor: Multiple themes, your choice!
The code editor’s feature set grows with every release, and 4Dv19 is no exception. Every developer has their own special - and sometimes peculiar - t...
April 27, 2021
1 min read
4D Language – String comparison improvements
The 4D language offers 20+ commands to handle strings. And with 4D v18 R6, 4D introduces a new command: Compare strings. And yet another command has b...
January 25, 2021
1 min read
Code editor: Write more code in less time!
With 4D 18 R4, we announced the availability of the suggested functions for classes (4D and data model). With 4D v18 R6, we've got more great news to ...
January 22, 2021
1 min read
A new command to open a Form in the Form Editor
4D v18 R5 provides a new 4D command to open a form in the form editor. This can be especially useful for analysis or introspection tools. ...
October 27, 2020
1 min read
Coder-friendly syntax for class functions and methods
Using $1, $2, and $n variables in your code not only makes the code less readable, it can also increase confusion since the human brain can find it di...
October 23, 2020
1 min read
How to create a simple “TimeStamp” class in 4D
by guest author Tiran Behrouz, 4D developer (Vancouver, Canada) The introduction of ORDA in 4D v17 was a game-changer. Now with the introduction...
August 20, 2020
1 min read
New declaration syntax for an intuitive autocompletion
Have you ever wondered about 4D's autocompletion feature or asked yourself why 4D suggests all functions used in the code? Since an object is a very g...
August 5, 2020
1 min read
CryptoKey: Encrypt, Decrypt, Sign, and Verify!
4D solutions have always been safe and stable. This is because 4D invests heavily in developing and updating security features. 4D continues this focu...
August 3, 2020
1 min read