What is args variable?

What is args variable?

This feature is called varargs and it is short-form for variable-length arguments. A method that takes a variable number of arguments is a varargs method. One using overloaded method(one for each) and another put the arguments into an array, and then pass this array to the method.

How can you get the type of arguments passed to a function in JavaScript?

When you don’t know how many arguments will be passed into a function, you can use the argument object, which is built-in to functions by JavaScript, to retrieve all the arguments and make use of them. The Arguments object contains an array of all the arguments passed to a function.

What will happen if no parameter is passed to function?

Nothing will happen- meaning you won’t get an error or a warning as passing the parameters in javascript is optional.

What is variable hoisting in JavaScript?

JavaScript Hoisting refers to the process whereby the interpreter allocates memory for variable and function declarations prior to execution of the code. Declarations that are made using var are initialized with a default value of undefined . This allows variables to appear in code before they are defined.

What are the two ways to pass in a variable as an argument in a function in Visual Basic?

Visual Basic supports two ways of passing parameters to functions. By value and by reference.

What are the two ways to pass in a variable as an argument in a function in VB?

In VBScript, there are two ways values can be passed: ByVal and ByRef . Using ByVal , we can pass arguments as values whereas with the use of ByRef , we can pass arguments are references.

Can a function be defined without parameters?

A function cannot be defined without parameters | KnowledgeBoat.

What happens if you pass an extra parameter to a method in JavaScript?

In JavaScript, you cannot pass parameters by reference; that is, if you pass a variable to a function, its value is copied and handed to the function (pass by value). Therefore, the function can’t change the variable. If you need to do so, you must wrap the value of the variable (e.g., in an array).