What can be done in order to avoid creation of global variables in JavaScript?

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What can be done in order to avoid creation of global variables in JavaScript?



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2) Which is the correct code that returns a complex number that is the complex conjugate of this one?

3) The object whose properties are inherited by all instances of the class, and properties whose values are functions behaving like instance methods of the class, is

4) Which are the two functions that are not allowed in any secure subset?

5) Consider the following code snippet

 data.sort(function(a,b),b-a);

What does the above code do?

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