fixed "undefined"

commands/fun/4chan.js

@@ -40,26 +40,39 @@ class FourchanCommand extends Command {
 
 			let i = Math.floor((Math.random() * response.threads.length));
 
+			// If post is sticky search again
 			while(response.threads[i].posts[0].sticky == 1) {
 				i = Math.floor((Math.random() * response.threads.length));
 			}
 
+			let title = response.threads[i].posts[0].sub;
 			let description = response.threads[i].posts[0].com;
-			description = decodeURI(description);
 
+			// Remove HTML element and encoding
+			description = decodeURI(description);
 			let regex = /(<([^>]+)>)/ig;
 			if (regex.test(description)) {
 				description = response.threads[i].posts[0].com.replace(/(<([^>]+)>)/ig,'');
 			}
 
+			// If title or description is undefined, change it to "no title/description"
+			if (!title) {
+				title = 'No title';
+			}
+
+			if (!description) {
+				description = 'No description';
+			}
+
 			const FourchanEmbed = new MessageEmbed()
 				.setColor('#ff9900')
-				.setTitle(response.threads[i].posts[0].sub)
+				.setTitle(title)
 				.setDescription(description)
 				.setImage(`https://i.4cdn.org/${args.board}/${response.threads[i].posts[0].tim}${response.threads[i].posts[0].ext}`)
 				.setURL(`https://boards.4chan.org/${args.board}/thread/${response.threads[i].posts[0].no}/${response.threads[i].posts[0].semantic_url}`)
 				.setFooter(`${boards.getName(args.board)} | ${response.threads[i].posts[0].name} | ${response.threads[i].posts[0].no}  | ${response.threads[i].posts[0].now}`);
 				
+			// If file type dosen't work on embed, send it as a link
 			if (response.threads[i].posts[0].ext == '.webm' || response.threads[i].posts[0].ext == '.pdf' || response.threads[i].posts[0].ext == '.swf') {
 				message.channel.send(FourchanEmbed);
 				message.channel.send(`https://i.4cdn.org/${args.board}/${response.threads[i].posts[0].tim}${response.threads[i].posts[0].ext}`);