More documentation for the Chat object

Author: ALCC01

docs/objects/Chat.rst

@@ -3,6 +3,10 @@ Chat
 
 This object represents a Telegram chat.
 
+.. note::
+
+    This object inherits some properties from the corresponding `Telegram object<https://core.telegram.org/bots/api#chat>`_
+
 =================
 Chat(object, bot)
 =================
@@ -131,4 +135,10 @@ sendAction(action)
 
 * ``action`` <String> Must be one of the following: ``typing``, ``upload_photo``, ``record_video``, ``upload_video``, ``record_audio``, ``upload_audio``, ``upload_document``, ``find_location``
 
-Returns a promise that resolves to the response (true on success).
+Returns a promise that resolves to the response (true on success).
+
+====
+name
+====
+
+<String> *Optional*. The full name of the chat (first name + last name) if available

lib/Chat.js

@@ -7,7 +7,7 @@ function Chat(object, bot) {
     if (object == undefined) return;
     extend(this, object);
 
-    this.name = this.first_name + (this.last_name ? " " + this.last_name : "");
+    if (this.first_name) this.name = this.first_name + (this.last_name ? " " + this.last_name : "");
     this.bot = bot;
 
     this.sendMessage = (text, options) => {