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Q. 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?

(A) Sum of square of a and b
(B) Square of sum of a and b
(C) Sum of a and b square
(D) None of the mentioned

Correct Answer - Option(A)
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Filed under category JavaScript
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Explanation by: Admin

The above code snippet contains nested function in which the function hypotenuse(a,b) has another function inside its scope, function square(x). The interesting thing about nested functions is their variable scoping rules. They can acceess the parameters and variables of the function (or functions) they are nested within.

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Q. 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?

Explanation by: Admin

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Q. 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?