Which of the following is a common example of a native feature that may require native code in a React Native app?

This test assesses knowledge of core React Native concepts including architecture, performance optimization, workflows, styling, and native integration.

It is a communication channel that allows asynchronous data exchange between JavaScript and native modules, serializing data in a JSON-like format

It compiles JavaScript code into native machine code before execution

It handles layout rendering on the UI thread exclusively

It is a debugging tool used for monitoring app performance

What is the role of the bridge in React Native?

Lack of support for certain platform-specific features

What is one limitation of React Native that might force developers to implement native modules?

React Native CLI provides full native code control and flexibility, while Expo offers a streamlined setup with limited native module access

Expo requires manual native code integration, while React Native CLI automates this process

React Native CLI can only build Android apps, whereas Expo supports both iOS and Android

Expo supports native code debugging, while React Native CLI does not

What is the key difference between React Native CLI and Expo when starting a new project?

Removal of the bridge and adoption of JavaScript Interface (JSI) for direct, synchronous calls to native code, improving performance and reducing latency

A return to using only web views for UI rendering to simplify development

Replacing JavaScript with Java as the primary programming language

Introduction of a single-threaded architecture for better consistency

What is the major improvement in the new React Native architecture compared to the old one?

It allows bypassing React Native entirely

It enables using platform-specific capabilities not exposed by React Native

It eliminates the need for front-end development

How does native code integration impact the development process in React Native projects?

By mapping React Native components directly to native UI components and using multiple threads for UI, JavaScript, and layout work

By running all code in a single thread and using HTML rendering inside the app

By compiling JavaScript directly into native binary code before execution

By only using web views to render the user interface

How does React Native achieve native-like performance?

Using Platform.OS API, Platform.select method, and platform-specific file extensions like .ios.js or .android.js

By compiling separate binaries for each platform without shared code

Only by using inline conditional comments inside JavaScript files

By writing native code directly in JavaScript without any platform checks

How do you handle platform-specific code in React Native?

Because React Native cannot handle basic UI elements

To access specific native functionalities like App Clips and Widgets

Because React Native does not support navigation

Why is native code still necessary in certain React Native projects?

Handle app state management more efficiently

Access platform-specific features unavailable in React Native

Eliminate the need for JavaScript debugging

What does writing native code alongside React Native allow developers to do?

Питання 10 з 10