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40 lines
1.2 KiB
HTML
40 lines
1.2 KiB
HTML
<!doctype html>
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<title>07 Property Example - React From Zero</title>
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<script src="https://unpkg.com/react@16.4.0/umd/react.development.js"></script>
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<script src="https://unpkg.com/react-dom@16.4.0/umd/react-dom.development.js"></script>
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<script src="https://unpkg.com/prop-types@15.6.1/prop-types.js"></script>
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<script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
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<div id="app"></div>
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<script type="text/babel">
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// Here's a more practical example of a component, it formats a date
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// and returns a <span> containing that formatted string.
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function DateSpan(props) {
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var date = props.date,
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day = date.getDate(),
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month = date.getMonth() + 1,
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year = date.getFullYear();
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return (
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<span>
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{day}.{month}.{year}
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</span>
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);
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}
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// Also a more sophisticated type check for the date property
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// The property is required, because there are no defaults set
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DateSpan.propTypes = {
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date: PropTypes.instanceOf(Date).isRequired
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};
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// We have to supply a date object, the component does the formatting
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var reactElement = <DateSpan date={new Date()} />;
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var renderTarget = document.getElementById("app");
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ReactDOM.render(reactElement, renderTarget);
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</script> |