függvényparaméter

A függvényparaméter, often translated as function parameter or argument, is a variable that is part of a function's definition. When a function is called, values are passed to these parameters, which are then used within the function's body to perform its intended operations. Parameters allow functions to be flexible and reusable, as they can accept different inputs to produce different outputs.

In programming, parameters are declared within the parentheses following the function name. These declarations specify the name and sometimes the data type of the expected values. When a function is invoked, the actual values provided are known as arguments. The order in which arguments are passed typically matters, as they are assigned to the parameters in the sequence they are defined.

Some programming languages support optional parameters, which can be omitted during a function call if a default value is provided in the function definition. Other languages allow for named parameters, where arguments can be explicitly associated with their corresponding parameter names, making function calls more readable and less dependent on argument order. Understanding parameters is fundamental to writing and utilizing functions effectively in any programming language. They are the conduits through which data enters and is processed by functions.