Hands On React JS From Beginner to Expert

Starting with basics, this course introduces Reactjs, the DOM and JSX, and builds practical skills in functional and class components, hooks, state, props, deconstructing props or state, and event handling.

Explore what React.js is and why it’s used to build user interfaces and single-page apps with a component-based, declarative approach, virtual dom, JSX, and a strong ecosystem.

Learn to set up any IDE for React, installing Node.js and npm, creating a React app with npx create-react-app, and running locally on localhost 3000.

Learn to build and import a functional component in a React app, create a components/greet.js, integrate it into app.js, and run locally, with attention to file naming and case sensitivity.

learn to build class components in React.js using VS Code, including importing React, extending component, and rendering with h1; compare with functional components and their state and lifecycle hooks.

Explore hooks in React 16.8, using useState, useEffect, useReducer to manage state and side effects in functional components, and learn about custom hooks and context.

Learn how to run JSX in React files, create and export components like Hello.js, and render them with React elements in a live app using Visual Studio Code.

Learn how to use props (properties) in React to customize components, including props.name and props.children, with hands-on examples from greet.js and app.js.

Learn state in React.js, and compare props and state. Implement stateful UI in class components using this.state and setState with a sample message component.

Learn to destruct props and state in React to improve readability and pass name and username via props.

Master event handling in React by creating click handlers for buttons, wiring onClick events, and exploring functional and class components with practical logging and state updates.

Discover how to bind event handlers in React using onClick, this.setState, and multiple binding approaches in constructor, render, and arrow functions to update the UI.

Explore using methods as props in React, passing handlers from parent to child components, binding methods, and using props to trigger greetings and pass data.

Explore conditional rendering in ReactJS, using if/else, element variables, ternary operators, and short-circuit techniques to display login states and dynamic UI.

Learn list rendering in React by building dynamic lists with map, rendering name and person data in JSX, and composing components to visualize data in a React app.

Learn to render lists in React using a unique key prop, such as person.id, and map data to components. Understand why missing keys trigger errors and how to debug.

Explore why using index as key is an anti-pattern in React. Learn how to manage lists with keys and stable identifiers for reliable UI updates.

Learn to build React forms with controlled components and state management, using handleChange and handleSubmit to capture, validate, and submit form data as a single source of truth.

Learn the React class component lifecycle methods from mounting to unmounting, including constructor, render, componentDidMount, componentDidUpdate, componentWillUnmount, and error handling, plus hooks replacement.

Master React class components by implementing the mounting lifecycle with constructor and componentDidMount, rendering in a UI, importing components, and using inspector to verify lifecycle events.

Demonstrate class components and refs in React by creating a refs file, wiring an input ref, and validating with componentDidMount and console logs, noting strong, soft, weak, phantom references.