Improve code quality and write tests

node_modules/@babel/plugin-transform-exponentiation-operator/lib/index.js

@@ -0,0 +1,55 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+function _helperPluginUtils() {
+  const data = require("@babel/helper-plugin-utils");
+
+  _helperPluginUtils = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _helperBuilderBinaryAssignmentOperatorVisitor() {
+  const data = _interopRequireDefault(require("@babel/helper-builder-binary-assignment-operator-visitor"));
+
+  _helperBuilderBinaryAssignmentOperatorVisitor = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _core() {
+  const data = require("@babel/core");
+
+  _core = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var _default = (0, _helperPluginUtils().declare)(api => {
+  api.assertVersion(7);
+  return {
+    name: "transform-exponentiation-operator",
+    visitor: (0, _helperBuilderBinaryAssignmentOperatorVisitor().default)({
+      operator: "**",
+
+      build(left, right) {
+        return _core().types.callExpression(_core().types.memberExpression(_core().types.identifier("Math"), _core().types.identifier("pow")), [left, right]);
+      }
+
+    })
+  };
+});
+
+exports.default = _default;