Math.pow and Infinity

Question

There are seven indeterminate forms in maths. Most of them returns NaN in JavaScript. But when i try:

Math.pow( 0, 0 )

or

Math.pow( Infinity, 0 )

it returns:

1

Is this some kind of bug?

Answer 1

That's what the specification says, so it's not a bug:

2. If y is +0, the result is 1, even if x is NaN.