React Native Interview Questions | Eklavya Online

React Native Interview Questions

Are all React components usable in React Native?

React web components use DOM elements (ex. div, h1, table, etc.) to display on UI. But, these components are not supported in React Native. You will need to find libraries or components which is made specifically for React Native. It is very hard to find that there are components available, which support both. But, it …

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What is meant by InteractionManager, and why it is Important?

The InteractionManager is a native module in React Native, which is responsible for differing the execution of a function until an interaction has finished. To handle this deferral, we need to call InteractionManager.runAfterInteractions(() => {…}). The InteractionManager is important because React Native has two threads. One is JavaScript UI thread, which handles drawing updates to …

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How Virtual DOM works in React Native?

Virtual DOM is a lightweight JavaScript object, which is an in-memory representation of a real DOM. It is an intermediary step between the render function being called and the displaying of elements on the screen. It is similar to a node tree, which lists the elements, their attributes, and content as objects and their properties. …

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How to use firebase in react native?

Firebase is a popular tool for mobile and web app development platform. It provides many services to help you in building fast and high-quality apps, grow your user base, and earn more money without managing infrastructure. It is a powerful Database as a Service (DBaaS) tool, which provides a scalable cloud database to store and …

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How React Native handle different screen sizes?

React Native provides many ways to handle screen sizes. Some of them are given below: 1. Flexbox: It is used to provide a consistent layout on different screen sizes. It has three main properties: flexDirection justifyContent alignItems 2. Pixel Ratio: It is used to get access to the device pixel density by using the PixelRatio …

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