React Class Component Hello World

Feel free to make some changes and see how they affect the output. Hello World and JSX.

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The key is to include the appropriate script files from React and Babel.

React class component hello world. This is a typical Hello World implementation in React in JSX file. Once done you can execute the hello world example from React. Imports are made at the top of a React component.

A React component can be defined as an ES6 class that extends the base ReactComponent class. Click the link above to open an online editor. Class App extends Component.

Import React Component from react. Use the Hello World React Component. ReactDOMrender Hello world documentgetElementByIdroot.

Import ReactDOM from react-dom. ReactDOMrender Hello world documentgetElementByIdroot. The smallest React example looks like this.

Try it on CodePen. Using a component is as simple as declaring it inside of tags for example. The render method returns React nodes which can.

React components are imported into other React components before using them. It shows one of two ways you can write components and how you pass data to a components. In the example above text is wrapped by core component which has simple style properties that center the text on the screen.

It should look something like this. It displays a heading saying Hello world on the page. This is just the easy way to demonstrate a simple.

In its minimal form a component must define a render method that specifies how the component renders to the DOM. I am using an external appjs file if you would like to do this then remember to include type textbabel.

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