npm and error messages

node_modules/cssnano/dist/lib/getMatch.js

@@ -0,0 +1,14 @@
+"use strict";
+
+exports.__esModule = true;
+exports.default = getMatchFactory;
+function getMatchFactory(mappings) {
+    return function getMatch(args) {
+        return args.reduce(function (list, arg, i) {
+            return list.filter(function (keyword) {
+                return keyword[1][i] === arg;
+            });
+        }, mappings);
+    };
+}
+module.exports = exports["default"];