React Native Basic Interview Questions
- How Different is React-native from ReactJS ? …
- What is Flexbox and describe any elaborate on its most used properties? …
- Describe advantages of using React Native? …
- What are threads in General ? and explain Different Threads in ReactNative with Use of Each ?
Thereof, is React Native faster than flutter?
Flutter, the last one is better in terms of performance, compatibility & app features, engineering cost, and further market trends. However, React Native is distinctively better when it comes to finding software developers. The availability of skilled engineers directly influences the time to market.
Regarding this, is React Native the same as ReactJS?
While Reactjs is basically a JavaScript library and React Native is the entire framework, the former is the heart of the latter, and compliments each other. If Reactjs is optimal for creating apps with high functionality and complex calculations, then React Native is ideal to give a native feeling to your mobile apps.
What are the 3 default React Native threads?
If we take a look, React Native right now uses 3 threads: UI Thread — This is the main application thread on which your Android/iOS app is running. … Shadow Thread — This thread is the background thread used by React Native to calculate your layout created using React library.
What are the key principles of React Native bridge layer?
Understanding the React Native bridge concept
- RCTView implements UIView.
- NB: some have tried but only for mobile development with opinionated approaches.
- JS threads communicates with the native ones through the bridge.
- Bidirectional communications between heterogeneous services.
What is Bridge in React Native?
If a react-native package contains an `ios` directory and an `android` directory, it is most-likely a Native Bridge. Those two directories are typically where the Native code should live for each platform, which then connects to one or more JS files which should be included within the npm package.
What is flex in React Native?
Flexbox is designed to provide a consistent layout on different screen sizes. You will normally use a combination of flexDirection , alignItems , and justifyContent to achieve the right layout. Flexbox works the same way in React Native as it does in CSS on the web, with a few exceptions.
What is hooks in react?
Hooks are functions that let you “hook into” React state and lifecycle features from function components. Hooks don’t work inside classes — they let you use React without classes. … You can also create your own Hooks to reuse stateful behavior between different components.
What is JSI in React Native?
React Native JSI (Javascript Interface) is the new layer that helps in communication between Javascript and Native Platforms easier and faster. It is the core element in re-architecture of React Native with Fabric UI Layer and Turbo Modules.
What is JSX used for?
What is JSX? JSX stands for JavaScript XML. JSX allows us to write HTML in React. JSX makes it easier to write and add HTML in React.
What is redux in react-native?
Redux is a javascript library made to help you manage the state of your application. It does that by providing the developer with a centralized place called the store, where the state is saved and modified through actions and reducers.
What is shadow tree in react-native?
When react-native sends the commands to render the layout, a group of shadow nodes are assembled to build shadow tree which represented the mutable native side of the layout (i.e: written in the corresponding native respective language, Java for Android and Objective-C for iOS) which is then translated to the actual …
What is virtual Dom in react-native?
The virtual DOM (VDOM) is a programming concept where an ideal, or “virtual”, representation of a UI is kept in memory and synced with the “real” DOM by a library such as ReactDOM. … They may also be considered a part of “virtual DOM” implementation in React.
What React Native is used for?
React Native is an open-source UI software framework created by Meta Platforms, Inc. It is used to develop applications for Android, Android TV, iOS, macOS, tvOS, Web, Windows and UWP by enabling developers to use the React framework along with native platform capabilities.