Kuizi 15 - Web

What is a function declaration in JavaScript?

• A function declaration is defined using the 'function' keyword, followed by a name, parameters, and a block of code.

• A function declaration is a way to define variables in JavaScript.

• A function declaration is created using the 'declare' keyword.

• A function declaration is an object that contains methods.

How do you define a function expression?

• A function expression is a function defined within an expression, typically assigned to a variable.

• A function expression is a type of variable that holds a function's return value.

• A function expression is a function that cannot be assigned to a variable.

• A function expression is a function defined only in the global scope.

What is the syntax for an arrow function?

• (parameters) => { statements } or (parameters) => expression

• (parameters) : { statements }

• (parameters) => [ statements ]

• (parameters) -> { statements }

What are parameters in a JavaScript function?

• Parameters are fixed values defined in the function body.

• Parameters are the return values of a function.

• Parameters are the names of the functions themselves.

• Parameters in a JavaScript function are variables that accept values when the function is called.

How do arguments differ from parameters?

• Arguments are the values supplied to a function, whereas parameters are the variables in the function definition that accept those values.

• Arguments are the same as parameters.

• Parameters are the values passed to a function.

• Arguments are defined within the function body.

What is the purpose of the return statement in a function?

• The return statement is used to define a function's parameters.

• The return statement allows a function to run indefinitely without stopping.

• The return statement pauses the function and waits for user input.

• The return statement allows a function to output a value and terminate its execution.

Can a function return multiple values? If so, how?

• Yes, a function can return multiple values using tuples, lists, or arrays.

• A function can only return one value at a time.

• Functions cannot return any values in programming.

• Multiple values can only be returned as strings.

What is the difference between a named function and an anonymous function?

• A named function can only return a value; an anonymous function cannot.

• Anonymous functions can only be used in loops; named functions cannot.

• A named function is always a global function; an anonymous function is always local.

• A named function has a name; an anonymous function does not.

How can you pass default values to function parameters?

• Use syntax like 'def function_name(param1=default_value):' in Python.

• Use 'function_name(param1: default_value)' syntax in JavaScript.

• Set default values using 'param1 = default_value' in C++ functions.

• Declare default values in a separate configuration file.

What happens if you call a function with fewer arguments than parameters?

• Missing parameters are assigned default values or 'undefined'.

• The function will execute with no output.

• The function will throw an error.

• All parameters will be ignored.