code: def test_jscode_Pow():
      g = implemented_function("g", Lambda(x, 2 * x))
      assert jscode(x**3) == "Math.pow(x, 3)"
      assert jscode(x ** (y**3)) == "Math.pow(x, Math.pow(y, 3))"
      assert (
          jscode(1 / (g(x) * 3.5) ** (x - y**x) / (x**2 + y))
          == "Math.pow(3.5*2*x, -x + Math.pow(y, x))/(Math.pow(x, 2) + y)"
      )
      assert jscode(x**-1.0) == "1/x"
  
imports: from sympy.core import pi, oo, symbols, Rational, Integer, GoldenRatio, EulerGamma, Catalan, Lambda, Dummy, S, Eq, Ne, Le, Lt, Gt, Ge, Mod
  from sympy.functions import Piecewise, sin, cos, Abs, exp, ceiling, sqrt, sinh, cosh, tanh, asin, acos, acosh, Max, Min
  from sympy.testing.pytest import raises
  from sympy.printing.jscode import JavascriptCodePrinter
  from sympy.utilities.lambdify import implemented_function
  from sympy.tensor import IndexedBase, Idx
  from sympy.matrices import Matrix, MatrixSymbol
  from sympy.printing.jscode import jscode
label_desc: Use image node_id 3 for calling a global function with example usage: test_jscode_Pow() without return types