Gulf Spic General Trading & Contracting Company Interview Questions and Answers

Redux is a predictable state container for JavaScript apps.

• Redux is a state management library for JavaScript applications.

• It helps in managing the state of an application in a predictable way.

• Redux follows a unidirectional data flow architecture.

• It uses actions, reducers, and a store to manage the state of an application.

• Redux is commonly used with React to build scalable and maintainable applications.

Higher order function takes a function as an argument or returns a function. Higher order component is a function that takes a component and returns a new component.

• Higher order function is a function that operates on other functions, either by taking them as arguments or by returning them.

• Higher order component is a function that takes a component and returns a new component with additional functionality.

• Higher order functions and components are used to create reusable code ...read more

Functional components are stateless and use functional programming concepts, while class-based components are stateful and use object-oriented programming concepts.

• Functional components are simpler and easier to read and test.

• Class-based components have access to lifecycle methods and state.

• Functional components are preferred for simple UI components, while class-based components are preferred for complex UI components.

• Functional components can be written as arrow functions, ...read more

Block components take up the full width of their container, while inline components only take up the necessary space.

• Block components create a new line and take up the full width of their container

• Inline components only take up the necessary space and do not create a new line

• Block components are used for larger elements like paragraphs and headings

• Inline components are used for smaller elements like links and buttons

React is a JavaScript library for building user interfaces.

• React allows for building reusable UI components.

• It uses a virtual DOM for efficient rendering.

• React can be used for both web and mobile app development.

• It supports server-side rendering for improved SEO.

• React is maintained by Facebook and has a large community of developers.

React has two types of hook methods: State Hooks and Effect Hooks.

• State Hooks manage state in functional components.

• Effect Hooks manage side effects in functional components.

• useState() is an example of State Hook.

• useEffect() is an example of Effect Hook.

Angular is a full-fledged framework while React is a library for building UI components.

• Angular is a complete solution for building web applications while React is focused on building UI components.

• Angular uses two-way data binding while React uses one-way data flow.

• Angular has a steeper learning curve while React is easier to learn.

• Angular has a larger file size while React has a smaller file size.

• Angular has a built-in dependency injection system while React does not.

• Angula...read more

Lazy loading is a technique used to defer the loading of non-critical resources until they are needed.

• Lazy loading can improve the performance of a React application by reducing the initial load time.

• React.lazy() is a built-in function that allows for lazy loading of components.

• Code splitting can be used to split the application into smaller chunks that can be loaded on demand.

• Lazy loading can be used for images, videos, and other resources that are not immediately necessary....read more