React.js Fundamentals Training in Warsaw, Poland

ReactJS training teaches learners how to build interactive and high-performance user interfaces for web applications using the React library. The course begins with an understanding of React’s core concepts, including components, JSX syntax, and props for building dynamic UIs. As learners progress, they explore advanced features like state management, lifecycle methods, hooks, and the use of React Router for navigation. The training also covers integrating React with back-end services, testing React components, and optimizing performance for scalable applications. By the end of the course, participants are equipped to create modern, responsive, and efficient web applications using ReactJS.

Introduction to React.js and Core Concepts

1. Introduction to ReactJS

• Overview of ReactJS and its role in modern web development

• Setting up a React development environment (using Create React App)

• Understanding the basic structure of a React app

2. JSX and Virtual DOM

• Introduction to JSX syntax and how it works with React

• Understanding the Virtual DOM and how React uses it for performance optimization

• Practical exercise

3. React Components

• Functional components vs class components

• Creating and using components in React

• Passing data through props to components

• Practical exercise

4. State in React

• Introduction to React state and its role in managing component data

• Using the useState hook in functional components

• Practical exercise

Advanced React Concepts and API Integration

5. Event Handling in React

• Understanding event handling in React (onClick, onChange, etc.)

• Managing user input and handling forms in React

• Practical exercise

6. React Lifecycle Methods

• Introduction to lifecycle methods in class components (componentDidMount, componentDidUpdate, etc.)

• Using hooks like useEffect for managing side effects in functional components

• Practical exercise

7. React Router

• Introduction to React Router for navigation

• Setting up basic routing in a React app

• Practical exercise

8. API Integration and Fetching Data

• Fetching data from external APIs using fetch or Axios

• Handling asynchronous data in React

• Practical exercise