npm and error messages

node_modules/icss-utils/lib/replaceValueSymbols.js

@@ -0,0 +1,20 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+var matchValueName = /[$#]?[\w-\.]+/g;
+
+var replaceValueSymbols = function replaceValueSymbols(value, replacements) {
+  var matches = void 0;
+  while (matches = matchValueName.exec(value)) {
+    var replacement = replacements[matches[0]];
+    if (replacement) {
+      value = value.slice(0, matches.index) + replacement + value.slice(matchValueName.lastIndex);
+      matchValueName.lastIndex -= matches[0].length - replacement.length;
+    }
+  }
+  return value;
+};
+
+exports.default = replaceValueSymbols;