Introduction | NativeScript

# NativeScript Documentation > NativeScript provides platform APIs directly to the JavaScript runtime ( _with strong types_) for a rich TypeScript development experience. ## @nativescript/core Fundamentals - [Application](https://docs.nativescript.org/core/application) - [ApplicationSettings](https://docs.nativescript.org/core/application-settings) - [Color](https://docs.nativescript.org/core/color) - [Connectivity](https://docs.nativescript.org/core/connectivity) - [Device](https://docs.nativescript.org/core/device) - [FileSystem](https://docs.nativescript.org/core/file-system) - [FPS Meter](https://docs.nativescript.org/core/fps-meter) - [Http](https://docs.nativescript.org/core/http) - [ImageCache](https://docs.nativescript.org/core/image-cache) - [Observable](https://docs.nativescript.org/core/observable) - [Screen](https://docs.nativescript.org/core/screen) - [Trace](https://docs.nativescript.org/core/tracing) - [Utils](https://docs.nativescript.org/core/utils) - [XmlParser](https://docs.nativescript.org/core/xml-parser) ## @nativescript/core UI Components ### Layout Containers [​](https://docs.nativescript.org/ui/\#layout-containers) - [StackLayout](https://docs.nativescript.org/ui/stack-layout) - [GridLayout](https://docs.nativescript.org/ui/grid-layout) - [RootLayout](https://docs.nativescript.org/ui/root-layout) - [FlexboxLayout](https://docs.nativescript.org/ui/flexbox-layout) - [WrapLayout](https://docs.nativescript.org/ui/wrap-layout) - [DockLayout](https://docs.nativescript.org/ui/dock-layout) - [AbsoluteLayout](https://docs.nativescript.org/ui/absolute-layout) ### Navigation Components [​](https://docs.nativescript.org/ui/\#navigation-components) - [Frame](https://docs.nativescript.org/ui/frame) - [Page](https://docs.nativescript.org/ui/page) - [ActionBar](https://docs.nativescript.org/ui/action-bar) - [ActionItem](https://docs.nativescript.org/ui/action-bar#action-item) - [NavigationButton](https://docs.nativescript.org/ui/action-bar#navig