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From http://reactfordesigners.com/labs/reactjs-introduction-for-people-who-know-just-enough-jquery-to-get-by/ - http://jsbin.com/fenofa/
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://fb.me/react-0.13.1.js"></script> | |
| <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" type="text/css" /> | |
| <meta charset="utf-8"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <script src="jsbin.fenofa.js"></script> | |
| </body> | |
| </html> |
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| var TweetBox = React.createClass({displayName: 'TweetBox', | |
| render: function() { | |
| return ( | |
| React.createElement("div", {className: "well clearfix"}, | |
| this.overflow(), | |
| React.createElement("textarea", {className: "form-control", onChange: this.handleChange}), | |
| React.createElement("br", null), | |
| this.remainingCharacters(), | |
| React.createElement("button", {className: "btn btn-primary pull-right", disabled: this.state.text.length == 0 && !this.state.photo}, "Tweet"), | |
| React.createElement("button", {onClick: this.togglePhoto, className: "btn btn-default pull-right"}, " ", this.state.photo ? "✓ Photo Added" : "Add Photo" | |
| ) | |
| ) | |
| ); | |
| }, | |
| overflow: function() { | |
| if (this.remainingCharacters() < 0) { | |
| var okText = this.state.text.substring(140-10, 140); | |
| var badText = this.state.text.substring(140); | |
| return ( | |
| React.createElement("div", {className: "alert alert-warning"}, | |
| "Oops! Too Long: ...", okText, React.createElement("strong", {className: "bg-danger"}, badText) | |
| ) | |
| ) | |
| } | |
| }, | |
| handleChange: function(event) { | |
| this.setState({ text: event.target.value }); | |
| }, | |
| togglePhoto: function(event) { | |
| this.setState({ photo: !this.state.photo }); | |
| }, | |
| remainingCharacters: function() { | |
| base = 140 - this.state.text.length; | |
| if (this.state.photo) { | |
| base -= 23; | |
| } | |
| return base; | |
| }, | |
| getInitialState: function () { | |
| return { | |
| text: "", | |
| photo: false | |
| }; | |
| } | |
| }); | |
| React.render( | |
| React.createElement(TweetBox, null), | |
| document.body | |
| ); |
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