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| function E(node) { | |
| function isChildren(x) { return x instanceof Array; } | |
| function isText(x) { return typeof x === "string"; } | |
| if(!(node instanceof Array)) | |
| return node; | |
| var element = node[0]; | |
| var props = null; | |
| var text = null; | |
| var children = null; | |
| if(node.length > 1) { | |
| if(isChildren(node[1])) { | |
| children = node[1].map(E); | |
| } else if(isText(node[1])) { | |
| text = node[1]; | |
| if(isChildren(node[2])) { | |
| children = node[2].map(E); | |
| } | |
| } else if(node.length == 2) { | |
| props = node[1]; | |
| } else if(isChildren(node[2])) { | |
| props = node[1]; | |
| children = node[2].map(E); | |
| } else if(isText(node[2])) { | |
| props = node[1]; | |
| text = node[2]; | |
| if(isChildren(node[3])) { | |
| children = node[3].map(E); | |
| } | |
| } | |
| } | |
| return React.createElement(element, props, text, children); | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <script src="react.min.js"></script> | |
| <script src="E.js"></script> | |
| <style> | |
| .fancy { color: pink; } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="ui" /> | |
| <script src="index.js"></script> | |
| </body> | |
| </html> |
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| var subcomp = E(['blockquote', 'Awesome!']) | |
| var rootClass = React.createClass({ | |
| getInitialState: function() { | |
| return {text: ""}; | |
| }, | |
| onChange: function(e) { | |
| this.setState({text: e.target.value}); | |
| }, | |
| render: function() { | |
| return E(['div', [ | |
| ['h1', 'Hello, world!'], | |
| ['p', {className: 'fancy'}, this.state.text], | |
| subcomp, | |
| ['input', {onChange: this.onChange}] | |
| ]]); | |
| } | |
| }); | |
| React.render(React.createElement(rootClass), document.getElementById('ui')) |
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