Modern React Foundations: A Practical Developer Guide

Explore JavaScript, JSX, and XML basics through a simple subscription form example with a label, an input, and a submit button.

Create a components folder and an app component, export and import it across modules, then run npm run dev to test; later add a subscription form component file.

Build the subscription form as a React JSX component starting with a capital letter, including a label, an email input, and a submit button, with proper closing tags and export.

Demonstrates applying inline styles to a form, using camelCase properties like marginLeft and backgroundColor to add spacing and color, and explains double curly braces syntax and debugging in the console.

Learn to use JavaScript expressions inside JSX by wrapping them in curly braces to render results like nine, and apply a ternary operator, an arrow function, and a style object.

Master the one root element rule in JSX by using a wrapping div or React fragments, and learn when to import React and adopt CSS-based styling over inline styles.

Organize a subscription form by extracting styles to a CSS file, importing it, and applying a submit-btn class; fix html4 and class name issues, and check the browser console.

Explore props and fundamental React concepts by building a dynamic code component that renders text, author, and source through passed data, and set up a new React project to practice.

Learn to add bootstrap to a react project, starting with a quick copy-paste into index.html, then install via npm and import bootstrap to use container and mt-5 styling.

Create and integrate a reusable code component in a React project by building a code.js, applying className, exporting the component, and rendering it in the app.

Learn how to reuse a code component, adjust margins, and configure it with props in app.js to display varying code, person, and source in the React crash course.

Rename props to text and pass code, person, and source to code components, then render multiple codes in app.js.

Render code components from a client-side array of objects in a React app using the map function, displaying text, person, and source data while debugging a unique key prop error.

Learn how to use the key prop in React to ensure unique keys when rendering lists, using id values or a loop value to boost performance and prevent errors.

Learn the second way to use props by building a box component that renders arbitrary content through props.children, including headings, paragraphs, or code, in React.

Learn how state in react drives updates to ui for a counter component with increment and decrement buttons, and set up a project with npm install and npm run dev.

Create a React counter component using JSX, set up a components folder, and import bootstrap for styling; display the current value (initially zero) and provide increment and decrease buttons.

Wire increase and decrease buttons to on click event handlers in React, using arrow functions and console.log to log clicks for a simple counter.

Implement a counter in React with a zero-start value and two handlers to increase and decrease, logging updates as the count changes, leading into using state.

Master managing component state with the useState hook in React. Initialize count at zero, destructure [count, setCount], and update with setCount for increments, decrements, and updates using the previous value.

Create a practical React project that searches anime series and uses the useEffect hook. Fetch data via HTTP requests, show results, and manage favorites with add and remove actions.

Explore building reusable components, from search bars and bordered boxes to anime cards with image, title controlled by a prop, and a button that changes by layout.

Learn to build a search input component in a React crash course by creating a simple form with a Bootstrap input and a submit button.

Build an anime component with a bootstrap card, create animate.jsx, fix className and image tags, display the anime title and score 8.5, and import it into the app.

Create a reusable box component and an anime list in a React app, using bootstrap styles and a two-column layout to display two anime components.

Explain how to query a public anime api with the q parameter, limit results to five, inspect the data attributes, and send requests using fetch or axios.

Replace the deprecated API with a local anime API server on port 2001 to support Dororo and Pokemon searches, using http://localhost:3001 in the anime project.

Explore how the search feature updates the user interface by managing the search state in the app component and passing results to the animal list for rendering.

Create a series state with useState and implement an async axios search to fetch six anime. Update the state with response.data.data and pass the search function to the search input.

Pass a search function into the search input component via props named onSearch, and call it on form submit after preventing default, using state to capture the input value.

Import useState and create a term state as a string, then bind the input value to term for a controlled input; update on change and perform a search.

Consume the API response by passing series data as props to the anime list, map items to anime components with keys, and render title, score, and image.

Learn to manage a favorites list in a React app by storing anime series in state, wiring an add-to-favorites button, and understanding why mutating state breaks the UI.

Learn to manage React state without mutation by returning a new array, using prevFavorites, and checking a mail id to prevent duplicates with the key prop when adding to favorites.

Learn to convert add to favorites to remove from favorites using a reusable component with props for button text and action, update list with array-filter, and wire on click handler.

Build a loading component in React using Bootstrap five spinners and a simple div structure. Create a full-screen loading view with a dedicated loading.css and responsive center alignment.

Convert global styles to css modules for scoped, reliable styling in react components. Rename the stylesheet to module.css, import it as a classes object, and apply classes like classes.fullScreen.

Add loading and error handling to the project by using a single state object for series data, loading, and error, and manage success and failure with try-catch.

Implement loading and error handling in JSX by destructuring the anime response, using a render content function, and conditionally rendering a spinner or bootstrap alert on error.

Explore how to add an initial search without triggering infinite re-renders by using React's useEffect hook to manage state updates in the app component.

Learn how the use effect hook controls code execution with a dependency array, running on first render, on re-renders, or when specific state variables change.

Import useEffect and trigger initial search. Pass initial text to search input, ensure Dororo and Pokemon results with consistent image height via inline styles and the anim API.

Apply a quick fix to clear the favorites on each new search by setting the favorite anime series to an empty array in app.js.

Explore multiple styling approaches in React, from css and bootstrap integrations to css modules, inline styles, and component-scoped patterns for building independent, styled user interfaces.

Convert four alert variants into one configurable React component that renders success or error messages with icons and dynamic styling, and explore inline and CSS module styling.

Implement an alert component with CSS modules, using alert-v2 and alert-v2.module.css, with conditional classes for success or error based on type, and render the provided text.

Build an alert component with styled components that shows a check or cancel icon based on type, and apply a green or red background via props.type for clear state differentiation.

Discover how React emphasizes reusable components and CSS-in-JS patterns over traditional separation of concerns, with JSX styling and cross-project component reusability.

Review the anime app's search input component to identify improvements, then explore component libraries with a focus on the Mui library, and outline how real-world React projects are developed.

Explore MUI, a popular react component library that delivers ready-to-use components like buttons, rating, sliders, icons, and tables, aligned with material design and global customization.

Teams select a component library, typically Mui. They create a theme, add main building block components not in the library, and package them in a private repository for front-end modules.

Explore React internals and performance optimization beyond the basics, analyze simple apps for inefficiencies, and demonstrate optimization techniques with code samples from the course GitHub repo.

Explore React's declarative approach by defining state variables that drive the UI, causing automatic updates and re-renders of the app and its children, with Redux introduced as a state tool.

React uses a memory-based virtual DOM to detect changes, compares the new virtual DOM with the previous version, and applies only the changed elements to the real DOM, boosting performance.

Use useCallback to memoize the add apple handler and prevent re-renders of the memoized fruits component. The example shows dependency control and immutable state updates when adding apples.

Learn to optimize React apps with the useMemo hook by memoizing an expensive product filtering operation based on products and search term, reducing needless recalculations during re-renders.

Explore React DevTools to inspect the component tree, view props, and debug interactions. Use the profiler to record state updates and re-renders, identify bottlenecks, and optimize performance.

Explore how Lighthouse analyzes any website to reveal performance, accessibility, best practices, and SEO scores with actionable bottleneck suggestions for desktop and mobile.