[~] Refactor

deps/greasyfork/linkedin.user.js

@@ -26,9 +26,19 @@ class Linkedin {
     ] 
   }
 
+  document_on_changed () {
+    let current_data = parse_header();
+
+    console.log(current_data);
+  }
+
   listener_add() {
-    return VM.observe(document.body, () => {
-    })
+    return VM.observe(
+      document.body,
+      () => {
+        document_on_changed();
+      }
+    );
   }
 }