react-conponent-secondesElapsed

2016-04-26 16:29:36 来源: 阅读:

<!DOCTYPE html>
<html>
  <head>
    <script src="../../build/react.js"></script>
    <script src="../../build/react-dom.js"></script>
    <script src="../../build/browser.min.js"></script>
  </head>
  <body>
    <div id="example"></div>
    <script type="text/babel">
      var Timer = React.createClass({
        getInitialState : function(){
          return {secondsElapsed:0};
        },

        tick : function(){
          this.setState({secondsElapsed:this.state.secondsElapsed + 1});
        },

        componentDidMount : function(){
            this.interval = setInterval(this.tick,1000);
        },

        componentWillUnmount : function(){
          clearInterval(this.interval);
        },

        render : function(){
          return (
            <div>secondsElapsed:{this.state.secondsElapsed}</div>
          )
        },
      });

      ReactDOM.render(
        <Timer />,
        document.getElementById('example')
      );
    </script>
  </body>
</html>

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react-conponent-secondesElapsed

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