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JavaScript React Basics (2018) First Steps in React Render an Element

Steven mudie
Steven mudie
5,523 Points
Posted by Steven mudie
Steven mudie
5,523 Points

How old is this video? ReactDom.render() doesn't work. although i got it to show by placing title in function App()

function App() { return ( title ); }

export default App;

i am using npx create-react-app though

1 Answer

Dane Parchment
MOD
Dane Parchment
Treehouse Moderator 11,077 Points
Dane Parchment
Dane Parchment
Treehouse Moderator 11,077 Points

ReactDom.render() definitely still works. Are you sure you have imported it into your file?

ReactDOM.render(element, container[, callback])

Above is the syntax for the method, make sure you are at least providing an element (Component) and a containing element to place that component in. If you are using create-react-app, then the index.js file should also be using the ReactDom.render() method.

Like so: 

ReactDom.render(<App />, document.getElementById('root'));