The Complete React JS Developer: From Zero to Deployment

Explore jsx, a javascript syntax extension that resembles html and compiles to React.createElement, making component writing easier. Embed javascript expressions in jsx and ensure a parent element wraps multiple elements.

Compare functional and class components in React by examining simple greetings, rendering, and lifecycle differences, and contrast state management with useState versus class state.

Explore props and state in React.js, learning how a parent passes read-only props to a child, and how components manage local state with useState, onClick events, and dynamic updates.

Learn to handle events in React with on click and on change handlers in functional and class components, including passing arguments, alert examples, and using use state for input.

Explore react hooks in functional components by building a counter with useState, simulating an API call with useEffect, and gaining DOM access with useRef to focus an input.

Set up routing and navigation in a React JS app using React Router DOM, including routes, links, and programmatic navigation with use navigate.

Learn dynamic routing and route parameters in React using React Router DOM to create flexible user paths, access username with use parameter, and implement optional parameters for guest profiles.

Implement nested routes and protected routes with react router dom, rendering dashboards with outlet, and guarding pages via a login check to navigate securely.

Learn to implement 404 not found handling in react apps using react router dom, create basic and styled not found routes, and redirect or navigate to a 404 page.

Learn to manage global state in React using the Context API, create a context, provide it to components, and access it with use context to avoid prop drilling.

Learn Zustand for lightweight state management by creating a simple counter store with increase and decrease actions. Share state across components without boilerplate or context providers.

Explain how controlled inputs use React state to manage values, while uncontrolled inputs rely on a reference; compare examples and show a mixed approach for flexible forms in React.

Master handling forms in React with useState for full control of form data and useReference for a simpler, uncontrolled approach, including an email input with onChange and a submit alert.

Learn to implement form validation in React using Formik and Yup, define validation schemas for name, email, and password, show errors, and handle submit with validation.

Explore building a complex form in react that handles nested data with stateful components, using handle change and spread syntax to update city and zip fields.

Compare the fetch API and axios for data fetching in React, demonstrating native fetch with useEffect and useState and axios for simplified JSON handling and interceptor.

Learn how to perform api requests in React using the useEffect hook, fetch data from an api, render a user list, and handle loading and error states.

Learn how React Query simplifies server state management in React by handling caching, updates, and requests with useQuery and useMutation, and explore dynamic queries with query keys and enable flags.

Learn to implement loading and error handling in React apps using useState and useEffect, fetch data from APIs, and indicate status to users, plus explore error boundaries in class components.

Explore how React.memo prevents unnecessary re-renders in functional components and how useMemo memoizes expensive calculations to boost performance.

Explore how to optimize performance in React by memorizing functions with useCallback, preventing unnecessary child re-renders, and leveraging React.memo for efficient component updates.

Learn to use React.lazy and Suspense to load components on demand, reducing initial bundle size and speeding up app load times with a simple example.

Learn to implement JWT-based authentication in React by attaching a bearer token to API requests, fetch the user profile, and manage token retrieval from local storage.

Learn to implement role-based authentication in React using a simulated authentication context, protected routes, and admin versus user views.

Implement Firebase authentication in a React app by building a signup flow with email and password, configuring Firebase and creating a new user with Firebase authentication.