累乗のアルゴリズム

/// <summary>
/// 累乗
/// </summary>
/// <params name="base">底数</params>
/// <params name="exponent">指数</params>
/// <returns>数値</returns>
function power(base, exponent) {
  let pow = base;
  for (let i = 1; i < exponent; i++) {
    pow = (pow * base);
  }
  return pow;
}