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
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 the following correctly invokes a function with parameters?
A). function myFunc(a, b) { }; myFunc(a b);
B). function myFunc(a, b) { }; myFunc(a, b);
C). function myFunc(a b) { }; myFunc(a, b);
D). function myFunc(a, b) { }; myFunc[];
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 do you invoke a method named greet on an object person?
A). person.greet;
B). person.greet();
C). greet(person);
D). persongreet;
What is the output of function sayHi() { return 'Hi'; } alert(sayHi());?
A). sayHi
B). Hi
C). undefined
D). alert
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);
What is the output of var test = function() { return 5; }; console.log(test());?
A). test
B). 5
C). undefined
D). function
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
Which of the following is an example of an Immediately Invoked Function Expression (IIFE)?
A). function() {}();
B). (function() {})();
C). function() {}
D). (function {})();