What does return without a value return?

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

A). Hi

B). undefined

C). x

D). greet

How can you invoke a function using the call method?

A). myFunction.call();

B). myFunction.call(this);

C). call.myFunction();

D). call(myFunction);

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

A). person.greet;

B). person.greet();

C). greet(person);

D). persongreet;

How can you invoke a function named init only once when the script runs?

A). init;

B). (init)();

C). init();

D). function init() {}();

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);

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

A). function() {}();

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

C). function() {}

D). (function {})();

How do you invoke a function named myFunction?

A). myFunction;

B). call myFunction();

C). myFunction();

D). myFunction[];