An argument when used as a general statement means a fact or assertion offered as evidence that something is true. Web designers use the term argument as a parameter as in computer science which is a reference or value that is passed to a function, procedure, subroutine, command, or program. JavaScript, used by web designers, and is one of these arguments. JavaScript supports all the programing used by web designers for syntax in computer langage; C. The words argument and parameter both used by web designers, are often used interchangeably in the literature, although the C++ Standard makes a clear distinction between the two. An argument is one of the following: an expression in the comma-separated list in a function call used by web designers or a sequence of one or more preprocessor tokens used by web designers in the comma-separated list in a macro call.
A parameter is an object or reference used by web designers that is declared in a function declaration or definition. Web designers use default arguments sometimes like some programming languages such as Window PowerShell or like Python C++ which allows for the default argument to be explicitly or implicitly given in a subroutine's declaration. This allows the web designers to omit that argument when calling the subroutine. If the default argument is explicitly given, then that value is used if it is not provided by the caller. If the default argument is implicit then the language provides a well-known value if a value is not provided by the web designers. Some languages used by web designers allow subroutines to be defined to accept a numous amout of arguments.
Some programming languages used by web designers, allow subroutines to have named parameters. This allows the calling code to be more self describing. It also provides more flexibility to the web designers, often allowing the order of the arguments to be changed, or for arguments to be omitted as needed. Since both references are used by web designers and are almost interchangable it is very hard to tell them apart. A more simpler deffination would probally be a parameter is something that can take the identity of different values. Its change alters the system. So a parameter is a term to describe an input that is used to alter a system in some way. An argument is an assortment of information to be used by the system. Not necessarily to cause it to alter, but to be transformed by it. An argument you might say, is something that is absorbed by the system. Arguments are actually the values of function parameters and are often confused with function parameters.
ActionScript 2 also used by web designers, offers a number of ways to access the value of function parameters. You can access the function parameters or the values in the arguments object. The values within the arguments object are stored as an array. You can access the array of values in the arguments object in the same order they were passed into the function, by repeating through the array or accessing the values in the arguments object by index.