HTML5

Write a recursive function power (base, exponent) that, when invoked, returns base^exponent.

For example, power (3,4)=3 * 3 * 3 * 3. Assume that exponent is an integer greater than or equal to 1. The recursion step would use the relationship

base^exponent = base * base^{exponent -1}

and terminating condition occurs when exponent is equal to 1, because

base¹ = base

Incorporate this function into a script that enables the user to enter the base and exponent.