From 598ab03fd070f4c9e2569abbe439d983bff79746 Mon Sep 17 00:00:00 2001
From: Sam Rose <hello@samwho.dev>
Date: Thu, 14 Dec 2023 10:40:22 +0000
Subject: [PATCH] Optimise getUniqueByProp

---
 packages/server/src/db/linkedRows/linkUtils.ts | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/packages/server/src/db/linkedRows/linkUtils.ts b/packages/server/src/db/linkedRows/linkUtils.ts
index 5942e7e5a1..0d2e99fc6c 100644
--- a/packages/server/src/db/linkedRows/linkUtils.ts
+++ b/packages/server/src/db/linkedRows/linkUtils.ts
@@ -99,9 +99,15 @@ export async function getLinkDocuments(args: {
 }
 
 export function getUniqueByProp(array: any[], prop: string) {
-  return array.filter((obj, pos, arr) => {
-    return arr.map(mapObj => mapObj[prop]).indexOf(obj[prop]) === pos
-  })
+  const seen = new Set()
+  const ret = []
+  for (const item of array) {
+    if (!seen.has(item[prop])) {
+      seen.add(item[prop])
+      ret.push(item)
+    }
+  }
+  return ret
 }
 
 export function getLinkedTableIDs(table: Table): string[] {