From 72567ffe6a1e5a6bbeda508096374b546d42284e Mon Sep 17 00:00:00 2001
From: HF <pixelplanetdev@gmail.com>
Date: Fri, 19 Mar 2021 00:21:15 +0100
Subject: [PATCH] fix ip counter to delete entry if 0

---
 src/utils/Counter.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/utils/Counter.js b/src/utils/Counter.js
index 578eff1..735a733 100644
--- a/src/utils/Counter.js
+++ b/src/utils/Counter.js
@@ -26,7 +26,11 @@ export default class Counter<T> {
   }
 
   delete(item: T): void {
-    const count = this.get(item);
-    this.map.set(item, count - 1);
+    const count = this.get(item) - 1;
+    if (count === 0) {
+      this.map.delete(item);
+    } else {
+      this.map.set(item, count);
+    }
   }
 }