What is the primary purpose of referencing a property with a subscript in Pega?

The primary purpose of referencing a property with a subscript in Pega is to access multiple values. In Pega, properties can be defined as lists or arrays, allowing for the storage of multiple items of the same type under a single property name. By using a subscript, such as an index or a key, developers can retrieve or manipulate specific values within that array or list. This is particularly useful in scenarios where you are dealing with collections of data, enabling dynamic data handling and processing.

For instance, if you have a list of order items within a shopping cart, referencing a specific item using a subscript allows for targeted operations, such as updating the quantity of an item or retrieving the price of that item. This functionality is critical in applications where data relationships and collections are prominent, enhancing usability and efficiency in managing data structures.