How can you pass a function as an argument to another function?

Which of the following can a JavaScript function return?

A). Only strings

B). Only numbers

C). Any data type

D). Nothing

How do you create a function expression in JavaScript?

A). var myFunction = function() { };

B). var myFunction = function { };

C). var myFunction function() { };

D). var function myFunction() { };

What is an anonymous function?

A). A function without a name

B). A function without parameters

C). A function without return value

D). A function without a body

How do you handle the returned value of a function that returns an object?

A). var obj = myFunction(); obj.key;

B). var obj = myFunction().key;

C). var obj = myFunction.key();

D). var obj.key = myFunction();

What will be the output of the following code: function test() { return 'Hello'; } console.log(test());?

A). test

B). Hello

C). undefined

D). error

How can you store the result of a function in a variable?

A). var result = myFunction;

B). var result = myFunction();

C). var result = myFunction;()

D). var result: myFunction()

What happens if a function does not have a return statement?

A). It returns undefined

B). It throws an error

C). It returns null

D). It returns 0

How do you immediately invoke a function expression (IIFE)?

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

B). function() { }();

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

D). function() { }()

What is the correct syntax for invoking a function named myFunction?

A). call myFunction()

B). myFunction()

C). myFunction(call)

D). invoke myFunction()

How do you call a method named greet that belongs to an object person?

A). person(greet);

B). person.greet();

C). greet.person();

D). call person.greet();