react.js基本操练

var data = [{ "when": "2 minutes ago",
  "who": "Jill Dupre",
  "description": "Created new account"
},
{
  "when": "1 hour ago",
  "who": "Lose White",
  "description": "Added fist chapter"
},
{
  "when": "2 hours ago",
  "who": "Jordan Whash",
  "description": "Created new account"
}];
var headings = ["Last updated at", "By Author", "Summary"]
var title = "Recent Changes";


var App = React.createClass({
    render: function(){
    var headings = this.props.headings.map(function(heading) {
    return(<th>
{heading}
</th>);
});
var rows = this.props.data.map(function(row){
return <tr>
<td>{row.when}</td>
<td>{row.who}</td>
<td>{row.description}</td>
</tr>
})

return <div><h1>{this.props.title}</h1><table>
<thead>
{headings}
</thead>
{rows}
</table></div>
}
});

React.render(<App headings={headings} data={data} title={title}/>,
document.body);