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https://github.com/kay-is/react-from-zero.git
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58 lines
1.4 KiB
HTML
58 lines
1.4 KiB
HTML
<!doctype html>
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<title>3 Nested Elements - React From Zero</title>
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<script src="https://unpkg.com/react@15.4.2/dist/react.js"></script>
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<script src="https://unpkg.com/react-dom@15.4.2/dist/react-dom.js"></script>
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<script src="https://unpkg.com/babel-core@5.8.38/browser.min.js"></script>
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<div id="app"></div>
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<script type="text/babel">
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// Elements can be nested, which will result in nested React.createElement calls
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// As you can imagine, writing withs without JSX would be pretty tedious
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var reactElement =
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<div className='abc'>
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<h1>Hello</h1>
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<h2>world</h2>
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</div>
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// they can also, like mentioned in lesson 2, contain JavaScript in {}
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var myClass = 'abc'
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function myText() { return 'world' }
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// JavaScript insertion has the same syntax in attributes as in normal text or elements
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reactElement =
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<div className={myClass}>
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<h1>Hello {10 * 10}</h1>
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<h2>{myText()}</h2>
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</div>
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// this JavaScript can contain elements too
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var nestedElement = <h2>world</h2>
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reactElement =
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<div>
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<h1>Hello</h1>
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{nestedElement}
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</div>
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// it is also possible to "spread" an object as properties
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var properties = {
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className: 'abc',
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onClick: function() { alert('click') },
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}
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reactElement =
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<div {...properties}>
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<h1>Hello</h1>
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<h2>world</h2>
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</div>
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var renderTarget = document.getElementById('app')
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ReactDOM.render(reactElement, renderTarget)
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</script> |