# Part 02 miroslav.binas@tuke.sk / [**SMART**](https://kurzy.kpi.fei.tuke.sk/smart)
## Example: Torch App

Turn On
## [Expo SDK 39 is now available](https://dev.to/expo/expo-sdk-39-is-now-available-1lm8)
![ReactJS vs React Native](../images/reactjs.vs.react.native.png) Notes: * https://www.simform.com/reactjs-vs-reactnative/
## **React** is a **JavaScript** library for building **user interfaces**.
![JSX](../images/logo-jsx.jpg)
`[<getter>, <setter>] = useState(<initialValue>)`
[Wat](https://www.destroyallsoftware.com/talks/wat) @garybernhardt
## Questions?