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
What is the correct way to return an object from a function?
A). return object { };
B). return { };
C). return new Object { };
D). return object() { };
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 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
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 do you define a function with parameters in JavaScript?
A). function myFunction[] { }
B). function myFunction(parameters) { }
C). function myFunction{parameters}
D). function myFunction((parameters)) { }
What is the scope of a variable declared within a function?
A). Global
B). Local
C). Block
D). Script
Which of the following is a valid way to return multiple values from a function?
A). return a, b;
B). return [a, b];
C). return {a, b};
D). return (a, b);
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();
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