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React(0.13) 定义一个checked组件
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<!DOCTYPE html>
<html>
<head>
<title>React JS</title>
<script src="../build_0.13/react.js"></script>
<script src="../build_0.13/JSXTransformer.js"></script>
</head>
<body>
<div id="example"> </div> <script type="text/jsx">
var Checked = React.createClass({
//给他一个初始值
getInitialState:function(){
return {checked:true};
},
//有改变的时候
handleChange:function(event){
this.setState({checked:event.target.checked});
},
//提交
submitHandler:function(event){
event.preventDefault();
alert(this.state.checked);
},
//渲染html
render:function(){
return (
<form onSubmit={this.submitHandler} >
<input type="checkbox" value="A" checked={this.state.checked} onChange={this.handleChange} />
<br/>
<button type="submit">speak</button>
</form>
);
}
}); //将组件加到对应的元素上
React.render( <Checked />, document.getElementById('example') );
</script>
</body>
</html>
