Introduction
Application language (AL) is a programming language that is used to write code for Microsoft Dynamics 365 Business Central. With AL, you can manipulate data, and the statements and functions are able to read, write, and change data in the Business Central database.
It is important that you learn the basics of a development before you start creating new AL extensions for Business Central. You also need to understand how to define variables and how to use them.
In this module, you'll learn how to work with variables and will discover the intrinsic data types and collections. Additionally, you'll learn more about using assignments and the different expressions.