How do you define a function using a function expression?
A). var myFunc = function() { alert('Hello'); };
B). function myFunc() { alert('Hello'); }
C). var myFunc = function { alert('Hello'); };
D). var myFunc() { alert('Hello'); }
Which of the following correctly demonstrates a function returning another function?
A). function outer() { return function() { alert('Inner'); }; }
B). function outer() { function() { alert('Inner'); } return; }
C). function outer() { function() { alert('Inner'); }; }
D). function outer() { return function { alert('Inner'); }; }
How do you define an anonymous function assigned to a variable?
A). var anon = function() { alert('Anonymous!'); };
B). var anon = function { alert('Anonymous!'); };
C). function anon() { alert('Anonymous!'); }
D). var anon = function anonymous() { alert('Anonymous!'); };
How do you assign a function to a variable in JavaScript?
A). var greet = function() { alert('Hello'); };
B). var greet = function { alert('Hello'); };
C). function greet() { alert('Hello'); }
D). var greet = function alert('Hello');
How do you create an Immediately Invoked Function Expression (IIFE)?
A). (function() { alert('IIFE'); })();
B). function() { alert('IIFE'); }();
C). (function { alert('IIFE'); })();
D). function() { alert('IIFE'); };
What will be the output of the following code? var counter = (function() { var count = 0; return function() { return ++count; }; })(); console.log(counter()); console.log(counter());
A). 1, 2
B). 0, 1
C). undefined, undefined
D). 2, 4
What is the output of the following code? var person = { name: 'Alice', greet: function() { return 'Hello, ' + this.name; } }; console.log(person.greet());
A). Hello, Alice
B). Hello, undefined
C). Hello, name
D). undefined
How can you store a function as a property of an object?
A). var obj = { method: function() { alert('Hello'); } };
B). var obj = { method: alert('Hello'); };
C). var obj = { method: function { alert('Hello'); } };
D). var obj = { function() { alert('Hello'); } };
How can you define a method inside an object?
A). var obj = { method: function() { alert('Hello'); } };
B). var obj = { method() { alert('Hello'); } };
C). Both A and B
D). var obj = { function method() { alert('Hello'); } };
How can you invoke a function stored in a variable doSomething?
A). doSomething();
B). call doSomething;
C). doSomething[];
D). invoke(doSomething);