Senior React Native Developer Interview Questions and Answers

React Native Unit Testing involves testing individual components or functions in isolation. TDD stands for Test-Driven Development, a practice where tests are written before the actual code.

• React Native Unit Testing involves writing tests to verify the behavior of individual components or functions.

• TDD (Test-Driven Development) is a software development practice where tests are written before the actual code.

• TDD helps in ensuring that the code meets the requirements and is ea...read more

Handle multiple themes by using a theme provider and context in React Native.

• Create a ThemeProvider component to wrap the entire application.

• Use React context to pass the theme data down the component tree.

• Allow users to switch themes by updating the context value.

• Use conditional rendering based on the current theme in components.

React Hooks are a feature introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• React Hooks are functions that let you use state and other React features in functional components.

• Commonly used hooks include useState, useEffect, useContext, and useReducer.

• Hooks are used in the coding test to demonstrate understanding of managing state and side effects in React components.

React Native life cycle methods are functions that are automatically called at different stages of a component's life cycle.

• componentDidMount() is called after the component has been rendered to the screen

• componentWillUnmount() is called before the component is removed from the screen

• componentDidUpdate() is called after the component's state or props have been updated

Context is a built-in feature in React for managing global state, while Redux is a separate library for managing state in React applications.

• Context is simpler to set up and use compared to Redux.

• Redux is more powerful and scalable for larger applications with complex state management needs.

• Context is recommended for simpler state management needs, while Redux is recommended for more complex state management.

• Redux has a centralized store and follows a unidirectional data flow...read more