What is the difference between the two lines given below ?
  !!(obj1 &&

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What is the difference between the two lines given below ?

  !!(obj1 && obj2); (obj1 && obj2);



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2) Consider the following code snippet :

 var grand_Total=eval("10*10+5");

The output for the above statement would be :

3) What is the purpose of a return statement in a function?

4) Consider the following code snippet

function hypotenuse(a, b)
{
function square(x)
{
return x*x;
}
return Math.sqrt(square(a) + square(b));
}

What does the above code result?

5) Consider the following code snippet :

var string2Num=parseInt("123xyz");

The result for the above code snippet would be :

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