From c0b6384fa565858abd379e073726cde46c6f9c1a Mon Sep 17 00:00:00 2001
From: Derrick Hammer <derrick@derrickhammer.com>
Date: Mon, 29 Aug 2022 00:55:53 -0400
Subject: [PATCH] *Add utility function ensureUniqueRecords to ensure there are
 no duplicate records

---
 src/util.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/util.ts b/src/util.ts
index dfc09a2..dd42879 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -61,3 +61,9 @@ export function isPromise(obj: Promise<any>) {
     typeof obj.then === "function"
   );
 }
+
+export function ensureUniqueRecords(records: DNSRecord[]) {
+  return [
+    ...new Set(records.map((item: DNSRecord) => JSON.stringify(item))),
+  ].map((item) => JSON.parse(item));
+}