Default Arguments
Default arguments are a programming language feature that allows function or method parameters to have predefined values, which are used when the caller does not provide an explicit argument. This simplifies function calls by reducing the need for overloaded functions or conditional checks for missing inputs. It enhances code readability and maintainability by making common use cases more concise.
Developers should use default arguments to create more flexible and user-friendly APIs, especially when functions have optional parameters that commonly use specific values. For example, in configuration functions where most calls use standard settings, or in utility functions where sensible defaults reduce boilerplate code. It's particularly useful in languages like Python, JavaScript, and C++ to avoid function overloading and improve code clarity.