What is the output of var test = function() { return 5; }; console.log(test());?

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

How do you define and invoke a function to calculate the square of a number in one step?

A). var square = function(n) { return n * n; }; square(5);

B). (function(n) { return n * n; })(5);

C). function square(n) { return n * n; } square(5);

D). var square = (n) { return n * n; }; square(5);

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

A). function() {}();

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

C). function() {}

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

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[];

What happens if a function is invoked without parentheses in an event handler like onclick='myFunction'?

A). The function is executed immediately

B). The function reference is assigned

C). An error is thrown

D). The function does not work

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

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 {}()

How can you invoke a function stored in a variable myFunc?

A). myFunc();

B). call myFunc;

C). myFunc[];

D). invoke(myFunc);