Javascript - CS - CSE Questions and Answers

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The keyword or the property that you use to refer to an object through which they were invoked is

from

this

object

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Consider the following code snippet :

var o = new F();
o.constructor === F

The output would be :

false

true

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The basic difference between JavaScript and Java is

There is no difference

Functions are considered as fields

Variables are specific

Functions are values, and there is no hard distinction between methods and fields

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The meaning for Augmenting classes is that

objects inherit prototype properties even in dynamic state

objects inherit prototype properties only in dynamic state

objects inherit prototype properties in static state

None of the mentioned

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The property of JSON() method is:

it can be invoked manually as object.JSON()

it will be automatically invoked by the compiler

it is invoked automatically by the JSON.stringify() method

it cannot be invoked in any form

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When a class B can extend another class A, we say that

A is the superclass and B is the subclass

B is the superclass and A is the subclass

Both A and B are the superclass

Both A and B are the subclass

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If A is the superclass and B is the subclass, then subclass inherting the superclass can be represented as

B=inherit(A);

B=A.inherit();

B.prototype=inherit(A);

B.prototype=inherit(A.prototype);

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The snippet that filters the filtered set is

var t=new FilteredSet(s, {function(s) {return !(x instanceof Set);});

var t=new FilteredSet{function(s) {return !(x instanceof Set);});

var t=new FilteredSet(s, {function(s) {return (x instanceof Set);});

var t=new FilteredSet(s, {function(s) {return x;});

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The method that can be used to create new properties and also to modify the attributes of existing properties is

Object.defineProperty()

Object.defineProperties()

Both Object.defineProperty() and Object.defineProperties()

None of the mentioned