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.