What is the standard way of showing a loader icon before browser downloads all js files and loads react application.
Can I do something like this without breaking anything?
<div id="content" class="app">
Loading...
</div>
Yes.
Once your javascript has loaded, you can replace Loading... by rendering your react app into the same <div>
render(
<App />,
document.getElementById('content')
);
One way of doing this using component life cycle methods.
class App extends React.Component {
constructor(props){
super(props);
this.state = {
loading: true
};
}
componentWillMount(){
this.setState({loading: true}); //optional
}
componentDidMount(){
this.setState({loading: false})
}
render() {
return (
<section className="content">
{this.state.loading && 'loading...'} {/*You can also use custom loader icon*/}
<p>Your content comes here</p>
{this.props.children}
</section>
);
}
}
ReactDOM.render(<App />, document.getElementById("app"));<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<div id="app">
</div>