mislam
diff --git a/‎modules/angular2/src/services/title.ts‎
Lines changed: 16 additions & 0 deletions b/‎modules/angular2/src/services/title.ts‎
Lines changed: 16 additions & 0 deletions
@@ -1,7 +1,23 @@
 import {DOM} from 'angular2/src/dom/dom_adapter';
 
+/**
+ * A service that can be used to get and set the title of a current HTML document.
+ *
+ * Since an Angular 2 application can't be bootstrapped on the entire HTML document (`<html>` tag)
+ * it is not possible to bind to the `text` property of the `HTMLTitleElement` elements
+ * (representing the `<title>` tag). Instead, this service can be used to set and get the current
+ * title value.
+ */
 export class Title {
+  /**
+   * Get the title of the current HTML document.
+   * @returns {string}
+   */
   getTitle(): string { return DOM.getTitle(); }
 
+  /**
+   * Set the title of the current HTML document.
+   * @param newTitle
+   */
   setTitle(newTitle: string) { DOM.setTitle(newTitle); }
 }