add login/sign-up page with dark/light mode

node_modules/jsx-ast-utils/lib/values/expressions/Identifier.js

@@ -0,0 +1,35 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = extractValueFromIdentifier;
+var JS_RESERVED = {
+  Array: Array,
+  Date: Date,
+  Infinity: Infinity,
+  Math: Math,
+  Number: Number,
+  Object: Object,
+  String: String,
+  undefined: undefined
+};
+
+/**
+ * Extractor function for a Identifier type value node.
+ * An Identifier is usually a reference to a variable.
+ * Just return variable name to determine its existence.
+ *
+ * @param - value - AST Value object with type `Identifier`
+ * @returns - The extracted value converted to correct type.
+ */
+function extractValueFromIdentifier(value) {
+  var name = value.name;
+
+
+  if (Object.hasOwnProperty.call(JS_RESERVED, name)) {
+    return JS_RESERVED[name];
+  }
+
+  return name;
+}