Function to calculate the power of a number.

powerFunction.js

var power = function(base, exponent) {
    if (exponent === 0) {
        return 1;
    }
    else {
        return base * power (base, exponent - 1);
       
    }
    
};
    console.log(power(2, 4) === 16);
    console.log(power(3, 2) === 9);
    console.log(power(5, 2) === 25);