From 452eec8a881f0fcbdb2d5c75ae8253b158812d10 Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Sat, 15 Feb 2020 12:27:18 -0500
Subject: Use Map

---
 ext/bg/js/settings/dictionaries.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/ext/bg/js/settings/dictionaries.js b/ext/bg/js/settings/dictionaries.js
index adad76fb..427f47f0 100644
--- a/ext/bg/js/settings/dictionaries.js
+++ b/ext/bg/js/settings/dictionaries.js
@@ -491,15 +491,18 @@ function dictionaryErrorsShow(errors) {
     dialog.textContent = '';
 
     if (errors !== null && errors.length > 0) {
-        const uniqueErrors = {};
+        const uniqueErrors = new Map();
         for (let e of errors) {
             console.error(e);
             e = dictionaryErrorToString(e);
-            uniqueErrors[e] = hasOwn(uniqueErrors, e) ? uniqueErrors[e] + 1 : 1;
+            let count = uniqueErrors.get(e);
+            if (typeof count === 'undefined') {
+                count = 0;
+            }
+            uniqueErrors.set(e, count + 1);
         }
 
-        for (const e in uniqueErrors) {
-            const count = uniqueErrors[e];
+        for (const [e, count] of uniqueErrors.entries()) {
             const div = document.createElement('p');
             if (count > 1) {
                 div.textContent = `${e} `;
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