Setup a domain helper on the postItem.

tmeasday · tmeasday · commit 0852258aa39d · 2015-10-19T22:27:36.000+11:00
chapter3-2
diff --git a/client/templates/posts/post_item.js b/client/templates/posts/post_item.js
@@ -0,0 +1,7 @@
+Template.postItem.helpers({
+  domain: function() {
+    var a = document.createElement('a');
+    a.href = this.url;
+    return a.hostname;
+  }
+});
