diff --git a/app/utils/sortBy.js b/app/utils/sortBy.js
new file mode 100644
index 0000000..25a102e
--- /dev/null
+++ b/app/utils/sortBy.js
@@ -0,0 +1,4 @@
+// @flow
+/* eslint-disable max-len */
+// $FlowFixMe
+export default <T>(field: string) => (arr: T[]): T[] => arr.sort((a, b) => (a[field] < b[field] ? 1 : -1));