Javascript Interview Questions - Part 3

1. Explain What Is The Lazy Loading?
2. What Is A Callback Function?
3. Explain What "this" Is In Javascript?
4. Explain What Is Ajax? Write An Ajax Call?
5. Explain What Event Bubbling Is?
6. What Is Stringify?
7. What Is The Difference Between Call And Apply?
8. Explain The Difference Between Visibility:hidden; And Display:none?
9. How can you declare a class in Javascript?
10. Explain Function.prototype.bind.
11. Describe what a closure is in your own words.
12. What Javascript engines do you know of?
13. Are objects in Javascript passed by reference or by value?