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<!DOCTYPE html>
<html>
<head>
<script src="//jashkenas.github.io/underscore/underscore-min.js"></script>
<script src="//fb.me/react-0.13.1.js"></script>
  <meta charset="utf-8">
  <title>React Hello World w/ JSBin</title>
</head>
<body>
  <div id="react_example"></div>
   <input id='el'  />
</body>
</html>
 
​
class HelloWorldComponent extends React.Component {
  uriChangeHandler(target) {
    console.log(target)
  }
  
  render() {
    var myHandler = _.compose(
      _.debounce(this.uriChangeHandler.bind(this), 5e2),
      _.property('target')
    );
    return (      
      <input onChange={myHandler}  />
    );
  }
}
​
React.render(
  <HelloWorldComponent/>,
  document.getElementById('react_example')
);
document.getElementById('el').onkeypress = x => console.log(x);
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