Which of the following statements is true about closures in JavaScript?
A closure can access variables from its outer function even after the outer function has returned.
A closure can be created when a function is defined inside another function.
Closures are useful for data encapsulation and controlling access to private data.
All of these.
Consider the below JavaScript program.
console.log("Start");
setTimeout(function() { console.log("Inside Timeout");}, 0);
Promise.resolve().then(function() { console.log("Inside Promise");});
console.log("End");What will be the output of the above program?
Start
Inside Timeout
Inside Promise
End
Start
Inside Promise
Inside Timeout
End
Start
End
Inside Timeout
Inside Promise
Start
End
Inside Promise
Inside Timeout
Consider the below JavaScript program.
function Person(name) { this.name = name;}
Person.prototype.greet = function() { console.log("Hello, " + this.name);};
const john = new Person("John");john.greet();
delete john.greet;john.greet();What will be the output of the above program?
Hello, John
TypeError: john.greet is not a function
Hello, John
Hello, undefined
TypeError: john.greet is not a function
TypeError: john.greet is not a function
Hello, John
Hello, John
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The IIT Madras BS Modern Application Development II (MAD 2) End Term paper sat on 22 Dec 2024, in the September 2024 term, set QDF1: 32 questions for 100 marks in 180 minutes. The first 3 questions are below. Sign in with Google — it is free — to see the whole paper with its answers and explanations, in learning mode or as a timed mock test.
| Feature | MAD 2 End Term 22 Dec 2024 Set QDF1 at a glance |
|---|---|
| Term | September 2024 term |
| Subject | Modern Application Development II |
| Course code | BSCS2006 |
| Questions | 32 |
| Marks | 100 |
| Duration | 180 min |
| MCQ | 29 |
| MSQ | 3 |
| Official paper | IIT M FOUNDATION DIPLOMA AN EXAM QDF3 22 Dec 2024 |
| Negative marking | No negative marking. |
| Updated |