React Native Tutorials:-

React Native Interview Questions and Answers:-

Q1. What is React Native used for?

React Native is an exciting framework that enables web developers to create robust mobile applications using their existing JavaScript knowledge. It offers faster mobile development, and more efficient code sharing across iOS, Android, and the Web, without sacrificing the end user's experience or application quality.

Q2. React Native development can be approached in two primary ways: with a framework (like Expo) and without a framework (bare React Native). Here’s a breakdown of both approaches:

With a Framework (Expo)

Pros:

1. Ease of Use: Expo provides a set of tools and services that simplify the development process, including a managed workflow that handles many of the complexities of building and deploying a React Native app.
2. Fast Setup: Setting up a new project with Expo is quick and straightforward, making it ideal for beginners or rapid prototyping.
3. Built-in Features: Expo comes with many built-in APIs for common functionalities like camera access, location services, and push notifications.
4. Hot Reloading: Expo supports fast refresh, allowing for real-time updates as you code.
5. Over-the-Air Updates: Expo enables over-the-air updates, allowing you to push updates to users without needing to go through the app store approval process.

Cons:

1. Limited Native Code Integration: If you need to use custom native modules or libraries that are not supported by Expo, you might face limitations.
2. Dependency on Expo: You rely on Expo’s roadmap and support, which might not always align with your specific needs.
3. Larger App Size: Expo apps can be larger in size due to the inclusion of the Expo framework.

Without a Framework (Bare React Native)

Pros:

1. Full Control: You have full control over your project and can integrate any native modules or libraries you need.
2. Flexibility: You can customize your build process and environment to suit your project’s specific requirements.
3. Smaller App Size: Without the additional overhead of a framework like Expo, your app can be more lightweight.

Cons:

1. Complex Setup: Setting up a bare React Native project can be more complex and time-consuming compared to using Expo.
2. Manual Configuration: You need to handle all the configuration and setup for native modules, which can be challenging and requires a good understanding of both Android and iOS development.
3. Longer Development Time: Without the conveniences provided by Expo, development can take longer, especially for common tasks like setting up push notifications or handling permissions.

When to Use Each Approach

• Expo: Ideal for beginners, rapid prototyping, and projects where you don’t need extensive native customizations. It’s great for getting up and running quickly and leveraging built-in features with minimal setup.

• Bare React Native: Suitable for projects that require extensive native module integration, custom native code, or specific performance optimizations. It’s also the go-to choice for developers with experience in native development who need full control over the app’s build process.

Choosing between these approaches depends on the specific needs of your project, your familiarity with React Native and native development, and the trade-offs you’re willing to make in terms of ease of use versus flexibility and control.