So siehts ganz gut aus !

node_modules/core-js/modules/_array-species-create.js

@@ -0,0 +1,6 @@
+// 9.4.2.3 ArraySpeciesCreate(originalArray, length)
+var speciesConstructor = require('./_array-species-constructor');
+
+module.exports = function (original, length) {
+  return new (speciesConstructor(original))(length);
+};