Share Explain through metaphor that return values allow a primary function to get information from a secondary function. with FacebookShare Explain through metaphor that return values allow a primary function to get information from a secondary function. with Twitter More explicitly consider the following conversation metaphor: A primary function may ASK a secondary function a QUESTION by calling it. The secondary function RESPONDS by returning an answer. More about this tip Tags Programming Concepts External Source Interview with Nick Melnyk Other Tips By Other Tips By Nick Melnyk