This 18-video course focuses on the React library for component-driven development and basic principles involved in creating React applications. Begin with an introduction to the React library and what is it used for, then discover how to design components with React. Identify features that make React powerful, and examine the concepts underlying important React features. Also explore the virtual document object model (DOM) and how it is used. Learn how to implement a simple web page by using React web application programming interfaces (APIs); recognize basic components of the web page built using React; and use minified productionized React libraries. A two-part tutorial focuses on creating nested elements: creating a DOM hierarchy with nested components, and using key attribute to identify unique sibling elements. Delve into JavaScript XML (JSX) and the functionality of the Babel compiler when used with JSX; then create elements using JSX and the Babel compiler, and render a DOM hierarchy using JSX. Conclude the course by focusing on evaluating simple expressions with JSX, and referring to JavaScript variables within JSX.

Learners can explore basics of working with React components, including rendering elements, smart rendering, and building simple and multiple components, in this 17-video course. Discover how to prototype react applications by using online playgrounds, including CodePen, CodeSandbox, and Glitch. Begin by observing how to install NodeJS libraries and the npm package manager on MacOS and on Windows. Run http-server on the local machine to serve web pages, and use ReactDOM.render() to render elements. Learn how to recognize smart rendering of elements in React; build simple components using ES6 classes; and build multiple components using ES6 classes. Discover how to implement a simple application on CodePen; configure the Babel preprocessor on CodePen; and build a simple React prototype on CodePen. Next, take a look at CodeSandbox and Glitch Online Playgrounds, and how to prototype a simple React application on both CodeSandbox and Glitch. Learn how to install and use create-react-app utilities on the local machine; create function components; and how to compose multiple simple components to create a complex component.

In this 18-video course, learners explore the basics of props and state, including similarities and differences. Discover how to work with props, use expressions, transfer props manually and using the spread operator. You will begin with a look at props and state in components and when they are used, and differences between props and state. Then move on to working with props; passing data into components by using props; evaluating expressions to pass data to components, and transferring props from higher to lower-level components manually. Also, discover how to transfer props from higher to lower-level components using the spread operator; dynamically render components based on conditions with props, and specify default values passed in as props. Next, learn how to validate props and access child elements using props.children; use expressions to pass in props values; and specify functions as children of a component. Next, receive an introduction to State; updating State by using this.setState() in a component; wiring up event handlers to update the state of a component; and accessing a component's previous state.

This 16-video course helps learners examine the basics of events and event handling in React, including synthetic events, the React component lifecycle, document object model (DOM) reconciliation, and preventing default event handling. Begin by observing use of event propagation in the capture and bubble phases, followed by an introduction to synthetic events and their advantages. Explore the phases in a React component's lifecycle; wire up event handlers to elements; prevent the browser's default event handling; and use synthetic events to access event properties. Discover how to build a component to toggle state, and what happens in the mounting phase of a component lifecycle. Learn how to execute code once a component is mounted to the DOM; observe what happens in the unmounting phase of a component's lifecycle; and learn how to hook into the update phase of a component's lifecycle. Conclude the course by discovering how to optimize the rendering of a component, and how to apply error boundaries to catch errors.