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36 lines
1.4 KiB
HTML
36 lines
1.4 KiB
HTML
<!doctype html>
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<title>2 JSX - React From Zero</title>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.0.1/react.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.0.1/react-dom.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.34/browser.min.js">
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// Now we will use JSX, which needs to be converted to JavaScript.
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// For this we will use Babel. Babel is normally used to convert ES2015 to ES5, but
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// it also can convert JSX to ES5. Babels browser version uses text/babel script tags.
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</script>
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<div id='app'></div>
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<script type="text/babel">
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// JSX is the idiomatic way of creating elements.
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// It's basically XHTML with {} for dynamic content
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// also class has to be called className
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var reactElement = <h1 className='abc' style={{textAlign:'center'}} onClick={function() { alert('click') }}>Hello, world!</h1>
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// Is the same as
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reactElement = React.createElement('h1', {className: 'abc', style: {textAlign: 'center'}, onClick: function() { alert('click') }}, 'Hello, world!')
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// JSX shines especially with simple elements that make up the majority in an app
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var anotherElement = <p>A nice text paragraph.</p>
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// Is the same as
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anotherElement = React.createElement('p', null, 'A nice text paragraph.')
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// As we can see, everything else works as before
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var renderTarget = document.getElementById('app')
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ReactDOM.render(reactElement, renderTarget)
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</script>
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