initial v2

.babelrc

+{
+  "presets": ["@babel/preset-env"],
+  "plugins": ["@babel/plugin-proposal-optional-chaining"]
+}
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dist/index.js

+"use strict";
+
 module.exports = require('./dist');
 module.exports = require('./dist');
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dist/src/index.js

-export class Utils {
-  /**
-   * @function
-   * @description Testasdfasdfasdf
-   * @param {String} str 
-   * @returns {String}
-   */
-  static printf(str) {
-    return `=======>${str}<=======`;
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.Utils = void 0;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var Utils =
+/*#__PURE__*/
+function () {
+  function Utils() {
+    _classCallCheck(this, Utils);
   }
   }
 
 
-}
+  _createClass(Utils, null, [{
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+    key: "printf",
+
+    /**
+     * @function
+     * @description Testasdfasdfasdf
+     * @param {String} str 
+     * @returns {String}
+     */
+    value: function printf(str) {
+      return "=======>".concat(str, "<=======");
+    }
+  }]);
+
+  return Utils;
+}();
+
+exports.Utils = Utils;
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