1 files changed, 40 insertions, 0 deletions
diff --git a/comm/chat/protocols/matrix/lib/matrix-sdk/extensible_events_v1/utilities.js b/comm/chat/protocols/matrix/lib/matrix-sdk/extensible_events_v1/utilities.js
new file mode 100644
index 0000000000..62e02febd7
--- /dev/null
+++ b/comm/chat/protocols/matrix/lib/matrix-sdk/extensible_events_v1/utilities.js
@@ -0,0 +1,40 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.isOptionalAString = isOptionalAString;
+exports.isProvided = isProvided;
+/*
+Copyright 2021 - 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+/**
+ * Determines if the given optional was provided a value.
+ * @param s - The optional to test.
+ * @returns True if the value is defined.
+ */
+function isProvided(s) {
+  return s !== null && s !== undefined;
+}
+
+/**
+ * Determines if the given optional string is a defined string.
+ * @param s - The input string.
+ * @returns True if the input is a defined string.
+ */
+function isOptionalAString(s) {
+  return isProvided(s) && typeof s === "string";
+}
+\ No newline at end of file