React - User-Defined JSX Components Not rendering
I've been trying to make an AJAX call and then add it to my view after it has been retrieved.
Nothing really happens with the current code.
const View = () => (
<div>
<h1>Reports</h1>
<statisticsPage />
</div>
);
export default View;
var statisticsPage = React.createClass({
getInitialState: function() {
return {info: "loading ... "};
},
componentDidMount: function() {
this.requestStatistics(1);
},
render: function() {
return (
<div>info: {this.state.info}</div>
);
},
requestStatistics:function(){
axios.get('api/2/statistics')
.then(res => {
values = res['data']
this.setState({info:1})
console.log('works!!')
});
}
})
You component name must begin with an Uppercase character since those beginning with lowercase are searched as default DOM elements like div, p, span etc
. Which is not the case for your statisticsPage
component. Make it uppercase and it works fine.
According to the docs:
When an element type starts with a
lowercase
letter, it refers to a built-in component like or and results in a string'div'
or 'span' passed toReact.createElement
. Types that start with a capital letter like<Foo />
compile toReact.createElement(Foo)
and correspond to a component defined or imported in yourJavaScript
file.We recommend naming components with a capital letter. If you do have a component that starts with a
lowercase
letter, assign it to a capitalized variable before using it in JSX.
const View = () => (
<div>
<h1>Reports</h1>
<StatisticsPage />
</div>
);
var StatisticsPage = React.createClass({
getInitialState: function() {
return {info: "loading ... "};
},
componentDidMount: function() {
this.requestStatistics();
},
render: function() {
return (
<div>info: {this.state.info}</div>
);
},
requestStatistics:function(){
console.log('here');
this.setState({info:1})
console.log('works!!')
}
})
ReactDOM.render(<View/>, 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>