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React.js temperature converter sample app http://bl.ocks.org/NV/193d039f286bf56f9c01
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Temperature Converter</title> | |
| </head> | |
| <body> | |
| <script src="http://fb.me/react-0.10.0.js"></script> | |
| <script src="http://fb.me/JSXTransformer-0.10.0.js"></script> | |
| <script type="text/jsx" src="TemperatureConverter.js"></script> | |
| </body> | |
| </html> |
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| /** | |
| * @jsx React.DOM | |
| */ | |
| function c2f(c) { | |
| return 9 / 5 * parseFloat(c) + 32; | |
| } | |
| function f2c(f) { | |
| return 5 / 9 * (f - 32); | |
| } | |
| var TemperatureConverter = React.createClass({ | |
| getInitialState: function() { | |
| return {c: 0} | |
| }, | |
| render: function() { | |
| var celciusValueLink = { | |
| value: this.state.c.toString(), | |
| requestChange: this.onCelsiusChange | |
| }; | |
| var fahrenheitValueLink = { | |
| value: c2f(this.state.c).toString(), | |
| requestChange: this.onFahrenheitChange | |
| }; | |
| return <div> | |
| <input type="number" valueLink={celciusValueLink}/>℃ ⟷ | |
| <input type="number" valueLink={fahrenheitValueLink}/>℉ | |
| </div> | |
| }, | |
| onCelsiusChange: function(data) { | |
| this.setState({c: parseFloat(data)}) | |
| }, | |
| onFahrenheitChange: function(data) { | |
| this.setState({c: f2c(data)}) | |
| } | |
| }); | |
| React.renderComponent( | |
| <TemperatureConverter/>, | |
| document.body | |
| ); |
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