Editing Angular (section)

===Modules===
The basic building blocks are '''NgModules''', which provide a compilation context for components and which bundles different Angular building blocks. An Angular app is defined by a set of NgModules. An app always has at least a <span id="RootModule">'''root module'''</span> conventionally named <code>AppModule</code> that enables [https://angular.io/guide/bootstrapping bootstrapping], and typically has many more '''feature modules'''. Like JavaScript modules, NgModules can import functionality from other NgModules, and allow their own functionality to be exported and used by other NgModules. For example, to use the router service in your app, you import the Router NgModule.

 @NgModule