What will function greet() { console.log('Hi'); } var x = greet; x(); output?

Which of the following is an example of an Immediately Invoked Function Expression (IIFE)?

A). function() {}();

B). (function() {})();

C). function() {}

D). (function {})();

What is the output of function multiply(x, y) { return x * y; } var result = multiply(5, 10); console.log(result);?

A). 50

B). 510

C). undefined

D). multiply

What is the result of invoking a function without parentheses, like myFunction?

A). The function gets executed

B). The function returns undefined

C). The function is referenced but not executed

D). The function throws an error

What is the output of function test() { return 2 + 2; } console.log(test());?

A). 22

B). 2 + 2

C). 4

D). test

What is the main purpose of the () operator in JavaScript functions?

A). To define a function

B). To invoke a function

C). To declare a variable

D). To create an object

Which of these is the correct way to define and immediately invoke a function?

A). function() { return 1; };

B). (function() { return 1; })();

C). function() { return 1; }();

D). function {}()

What does return do inside a function?

A). Stops the function

B). Returns a value to the caller

C). Both A and B

D). Declares a variable

Which of the following correctly invokes a function with parameters?

A). function myFunc(a, b) { }; myFunc(a b);

B). function myFunc(a, b) { }; myFunc(a, b);

C). function myFunc(a b) { }; myFunc(a, b);

D). function myFunc(a, b) { }; myFunc[];

How do you invoke a method named greet on an object person?

A). person.greet;

B). person.greet();

C). greet(person);

D). persongreet;

How do you invoke a function named myFunction?

A). myFunction;

B). call myFunction();

C). myFunction();

D). myFunction[];