Parameter

A parameter is a fundamental concept in programming, acting as a special kind of variable used within a subroutine to represent one of the inputs required by the subroutine. Parameters allow functions, methods, and procedures to receive data from outside their local environment, enabling code reusability and modularity. When a subroutine is called, the provided arguments are passed to these parameters, facilitating the execution of the subroutine’s task with specific data. Parameters can be of various types, such as input parameters (which provide data to the subroutine), output parameters (which return data from the subroutine), or input/output parameters (which can do both). Proper use of parameters is crucial for writing clean, efficient, and maintainable code, as they help in isolating functionalities and promoting code clarity.