How do you define a function in JavaScript?

What is the scope of a variable declared within a function?

A). Global

B). Local

C). Block

D). Script

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 the purpose of the return statement in a function?

A). To stop the execution of the function

B). To return a value to the caller

C). Both A and B

D). Neither A nor B

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

A). test

B). Hello

C). undefined

D). error

Which of the following can a JavaScript function return?

A). Only strings

B). Only numbers

C). Any data type

D). Nothing

How do you define a default parameter in a function?

A). function myFunction(param = 10) { }

B). function myFunction(param := 10) { }

C). function myFunction(param == 10) { }

D). function myFunction(param : 10) { }

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();

Which statement correctly defines a function named sum that returns the sum of two parameters a and b?

A). function sum(a, b) { return a + b; }

B). function sum(a, b) { a + b; }

C). function sum(a, b) return a + b;

D). function sum(a, b) { return (a + b) }

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

A). call myFunction()

B). myFunction()

C). myFunction(call)

D). invoke myFunction()

What is the correct way to return an object from a function?

A). return object { };

B). return { };

C). return new Object { };

D). return object() { };