Question

What is active binding in R programming?

Answer 1

Active bindings in R are much like properties in other languages: They look like a variable, but querying or setting the value triggers a function call. They can be created in R via makeActiveBinding(), but with this API the function used to compute or change the value of a binding cannot take additional arguments. The bindr package faciliates the creation of active bindings that are linked to a function that receives the binding name, and an arbitrary number of additional arguments.