Infogain UI Developer Interview Questions, Process, and Tips

React is a JavaScript library for building user interfaces. It is different from Angular and Vue in terms of architecture, data binding, and learning curve.

• React is a library, while Angular and Vue are frameworks.

• React uses a virtual DOM for better performance, while Angular and Vue use a real DOM.

• React follows a unidirectional data flow, while Angular and Vue use bidirectional data binding.

• React has a smaller learning...read more

Redux is a predictable state container for JavaScript apps. It helps manage the state of an application in a single immutable state tree.

• Redux stores the entire state of an application in a single immutable state tree.

• The state tree is read-only, and changes are made by dispatching actions.

• Reducers specify how the state changes in response to actions.

• The store holds the state tree, allows access to state via getState()...read more

I manage state using React's useState hook and context API for global state management.

• Using React's useState hook to manage local component state

• Utilizing React's context API for global state management

• Implementing Redux for complex state management scenarios

Yes, I have experience writing tests in React using Jest.

• I have experience writing unit tests for React components using Jest.

• I am familiar with testing libraries like Enzyme for React component testing.

• I understand how to write snapshot tests to ensure UI consistency in React applications.