Query collections
Simplicity is the ultimate sophistication, and with over 40 methods in 4D v16 R6 to manage collections, things are getting much easier for you as a de...
March 1, 2018
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.
Calculations in collections
Calculate average, total or price (including tax) are common tasks in any business application. Collections are an easy way to aggregate your data in ...
February 19, 2018
1 min read
Combine and sort collections
4D v16 R6 opens a wide range of possibilities to manage collections. Merging two collections into one, cloning or just ordering a collection is as eas...
February 12, 2018
1 min read
A wide range of possibilities to manage your collections
4D v16 R6 provides advanced capabilities to manipulate collections, thanks to a series of methods to be used with Object Notation. Over 40 methods are...
January 29, 2018
1 min read
Dates inside objects!
Objects are great! Their flexibility, combined with speed and elegance, make them a first choice for most developers. Using dates inside objects is no...
January 23, 2018
1 min read
Sharing information in multi-threading environment
4D v16 R6 introduces a new concept of communication between processes: shared object and shared collection variables! They are a solution so you can a...
January 18, 2018
1 min read
New command to get Web Server information
This feature is another way of providing you the ability to create your own server administration dialog. Following the ability to retrieve informatio...
November 3, 2017
1 min read
Working with JSON Pointers
In 4D v16 R4, we enriched object commands so you can validate JSON objects. 4D v16 R5 is going even further by introducing the support of JSON pointer...
October 30, 2017
1 min read
Hash and verify passwords for web user login
Security is becoming an increasingly important topic as business applications become more frequently accessible through the web and are, as a result, ...
October 18, 2017
1 min read
Don’t be afraid of undefined values
With 4D v16 R4, we introduced Object Notation which is a great enhancement to the 4D language: your code is fast, flexible, efficient and elegant! Thi...
October 11, 2017
1 min read