What can be done in order to avoid creation of global variables in JavaScript?
A. To use a method that defines all the variables
B. To use an object that has the reference to all the variables
C. To use an object as its namespace
D. To use global functions
Answer: Option C
Solution(By Examveda Team)
One way for a module to avoid the creation of global variables is to use an object as its namespace. Instead of defining global functions and variables, it stores the functions and values as properties of an object (which may be referenced to a global variable).This Question Belongs to Javascript >> Classes And Modules
The behaviour of the instances present of a class inside a method is defined by
A. Method
B. Classes
C. Interfaces
D. Classes and Interfaces
The keyword or the property that you use to refer to an object through which they were invoked is
A. from
B. to
C. this
D. object
Consider the following code snippet :
var o = new F();
o.constructor === F
A. false
B. true
C. 0
D. 1
The basic difference between JavaScript and Java is
A. There is no difference
B. Functions are considered as fields
C. Variables are specific
D. Functions are values, and there is no hard distinction between methods and fields
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