One of the most common use cases for parameters and arguments is in the creation of reusable functions. For example, let’s say we want to create a function that calculates the area of a rectangle. We can create a function called calculateArea that takes two parameters: width and height. Inside the function body, we can write code to calculate the area using these parameters. Then, when we call the function, we provide the necessary arguments for width and height, and the function returns the calculated area.
It’s essential to understand the difference between parameters and arguments and how to use them correctly in your code. You should also know how to provide default values for parameters in case no arguments are passed in when the function is called. This is especially important when working with optional parameters that may or may not be provided in a function call.
Furthermore, you need to be aware of the order of parameters and arguments, especially when dealing with functions that take multiple parameters. It’s crucial to keep the order of the arguments the same as the order of the parameters in the function declaration to ensure that they are assigned correctly.