From 9753d150025c52cc5df9e84bfa4cd41f49275ca3 Mon Sep 17 00:00:00 2001
From: counterweight <counterweightoperator@protonmail.com>
Date: Sun, 25 May 2025 00:10:10 +0200
Subject: [PATCH] completed 2.7

---
 parts/2/notes.md                                |  2 +-
 parts/2/phoneBook/src/App.jsx                   | 10 +++++++++-
 parts/2/phoneBook/src/components/PersonList.jsx |  5 +----
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/parts/2/notes.md b/parts/2/notes.md
index 6a37b74..768dbe5 100644
--- a/parts/2/notes.md
+++ b/parts/2/notes.md
@@ -5,7 +5,7 @@ Exercises:
 * [X] 2.4
 * [X] 2.5
 * [X] 2.6
-* [ ] 2.7
+* [X] 2.7
 * [ ] 2.8
 * [ ] 2.9
 * [ ] 2.10
diff --git a/parts/2/phoneBook/src/App.jsx b/parts/2/phoneBook/src/App.jsx
index 27d6b48..a84871d 100644
--- a/parts/2/phoneBook/src/App.jsx
+++ b/parts/2/phoneBook/src/App.jsx
@@ -7,7 +7,15 @@ const App = () => {
 
   const handleOnSubmit = (event) => {
     event.preventDefault();
-    setPersons(persons.concat({ name: [newName] }));
+    if (
+      persons.some((person) => {
+        return person.name === newName;
+      })
+    ) {
+      alert(`${newName} is already in the phonebook.`);
+      return;
+    }
+    setPersons(persons.concat({ name: newName }));
   };
 
   const handleNameChange = (event) => {
diff --git a/parts/2/phoneBook/src/components/PersonList.jsx b/parts/2/phoneBook/src/components/PersonList.jsx
index aa5501d..80da3a4 100644
--- a/parts/2/phoneBook/src/components/PersonList.jsx
+++ b/parts/2/phoneBook/src/components/PersonList.jsx
@@ -1,12 +1,9 @@
 const PersonList = ({ persons }) => {
-  console.log("the list");
-  console.log(persons);
-
   return (
     <>
       <ul>
         {persons.map((person) => {
-          return <li id={person.name}>{person.name}</li>;
+          return <li key={person.name}>{person.name}</li>;
         })}
       </ul>
     </>