Javascript interview questions part 6
Javascript interview questions part 6
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Total Questions: 20
1. Arrange the TCP/IP model layers in the order from farthest to closest to the end user.
Correct Answer is : Network Access Layer, Internet Layer, Transport Layer, Application Layer
2. What does the interpreter do when you reference variables in other scopes?
Correct Answer is : Traverses the stack
3. The attribute location belongs to which element?
Correct Answer is : document
4. What will happen if you reference document.location from within an object?
Correct Answer is : Traverses the stack
5. Why do we need to create locally scoped variables to hold value?
Correct Answer is : To cache the reference document.location
6. What is the next step after calling the startTimeLogging()?
Correct Answer is : Run the code
7. During the traversing through the stack, where does it go after it goes to the namespace?
Correct Answer is : Window
8. During the traversing through the stack, where does it go after it goes to the window?
Correct Answer is : Nowhere
9. During the traversing of the stack when you create a locally scoped variable, where does it go after it goes to the namespace?
Correct Answer is : Function
10. What is the function used to stop capturing the ad hoc timing ?
Correct Answer is : stopTimeLogging()
11. During the traversing of the stack when you create a locally scoped variable, where does it go after it goes to the location?
Correct Answer is : Nowhere
12. The behaviour of the instances present of a class inside a method is defined by __________
Correct Answer is : Classes
13. The keyword or the property that you use to refer to an object through which they were invoked is _________
Correct Answer is : this
14. Consider the following code snippet: var o = new F(); o.constructor === F The output would be:
Correct Answer is : TRUE
15. The basic difference between JavaScript and Java is _________
Correct Answer is : Functions are values, and there is no hard distinction between methods and fields
16. The meaning for Augmenting classes is that:
Correct Answer is : objects inherit prototype properties even in dynamic state
17. The property of JSON() method is:
Correct Answer is : it is invoked automatically by the JSON.stringify() method
18. When a class B can extend another class A, we say that:
Correct Answer is : A is the superclass and B is the subclass
19. If A is the superclass and B is the subclass, then subclass inheriting the superclass can be represented as _________
Correct Answer is : B.prototype=inherit(A);
20. The snippet that filters the filtered set is:
Correct Answer is : var t=new FilteredSet(s, {function(s) {return !(x instanceof Set);});
