- Software Engineer, Product
- Modern Technology stacks:
- React Basics:
- Component Lifecycle:
- Performance Optimization:
- React Router:
- State Management:
- CSS-in-JS and Styling: t
- Testing React app:
- Build React App With Java Backend
- Connecting React-Frontend and NodeJS/Express Backend Applications
- API Integration:
- Security Considerations:
- Code Quality & Best Practices:
- Behavioral Questions and Problem-Solving:
- Teamwork and Collaboration:
- Project Management and Deadlines:
- Adaptability:
- Culture Fit:
- Company-Specific Questions:
©2025 Jama Hassan
Full-Stack Web App with React,Node.js,Express
Full Stack Development Questions and Anwsers
Component Lifecycle:
1- How do React hooks ( useState, useEffect, useContext) work and how are they different from class components?
React Hooks are tools that allow you to use state and other React features without
writing class components. They're designed to simplify your code and
make it easier to share logic across components.
Hooks promote a more functional approach, which often leads to simpler and more concise code. Performance: Class components can have performance overhead due to the way they handle updates and lifecycle methods.
Hooks are designed to be more efficient and can lead to better performance in your React applications
Q: What is the difference between useState and useEffect?
A: useState is a hook used to manage state in functional components, while useEffect is a hook used to manage side effects (like fetching data, setting up event listeners, or updating the DOM) in functional components.
Q: What is the difference between useState and useContext in React?
The useState hook allows components to maintain and update their internal state, while the useContext hook facilitates the consumption of context values without excessive nesting.
By leveraging these hooks, React developers can build more efficient and maintainable applications.
How does React useState work?
useState allows you to add state to function components. Calling React. useState inside a function component generates a single piece of state associated with that component. Whereas the state in a class is always an object, with Hooks, the state can be any type.
Hooks promote a more functional approach, which often leads to simpler and more concise code. Performance: Class components can have performance overhead due to the way they handle updates and lifecycle methods.
Hooks are designed to be more efficient and can lead to better performance in your React applications
Q: What is the difference between useState and useEffect?
A: useState is a hook used to manage state in functional components, while useEffect is a hook used to manage side effects (like fetching data, setting up event listeners, or updating the DOM) in functional components.
Q: What is the difference between useState and useContext in React?
The useState hook allows components to maintain and update their internal state, while the useContext hook facilitates the consumption of context values without excessive nesting.
By leveraging these hooks, React developers can build more efficient and maintainable applications.
How does React useState work?
useState allows you to add state to function components. Calling React. useState inside a function component generates a single piece of state associated with that component. Whereas the state in a class is always an object, with Hooks, the state can be any type.
2- What is JSX and how is it different from HTML?
JSX is a JavaScript extension commonly used in React to build interactive user
interfaces in a visually intuitive way.
Unlike HTML, JSX enables the embedding of JavaScript expressions and facilitates the creation of reusable components, promoting a more dynamic and efficient approach to web development. To ensure optimal performance,
What does JSX describe?
Unlike HTML, JSX enables the embedding of JavaScript expressions and facilitates the creation of reusable components, promoting a more dynamic and efficient approach to web development. To ensure optimal performance,
What does JSX describe?
Full-Stack Engineer
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