React教程
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<div id="content"></div>
<script src="http://static01.baomihua.com/js/core/jquery-1.8.3.min.js"></script>
<script src="react.js"></script>
<script src="JSXTransformer.js"></script>
<script type="text/jsx">
var Comment = React.createClass({
render: function() {
return (
<div className="comment">
<h2 className="commentAuthor">
{this.props.author}
</h2>
{this.props.children}
</div>
)
}
})
var CommentList = React.createClass({
render: function() {
var commentNodes = this.props.data.map(function(comment) {
return (
<Comment author={comment.author}>
{comment.text}
</Comment>
)
})
return (
<div className="commentList">
{commentNodes}
</div>
)
}
})
var CommentForm = React.createClass({
handleSubmit: function(e) {
e.preventDefault()
var author = this.refs.author.getDOMNode().value.trim()
var text = this.refs.text.getDOMNode().value.trim()
if (!text || !author) {
return
}
this.props.onCommentSubmit({author: author, text: text})
this.refs.author.getDOMNode().value = ''
this.refs.text.getDOMNode().value = ''
return
},
render: function() {
return (
<form className="commentForm" onSubmit={this.handleSubmit}>
<input type="text" placeholder="Your name" ref="author" />
<input type="text" placeholder="Say something..." ref="text" />
<input type="submit" value="Post" />
</form>
)
}
})
var CommentBox = React.createClass({
loadCommentsFromServer: function() {
$.ajax({
url: this.props.url,
dataType: 'json',
success: function(data) {
this.setState({data: data})
}.bind(this),
error: function(xhr, status, err) {
console.error(this.props.url, status, err.toString())
}.bind(this)
})
},
handleCommentSubmit: function(comment) {
var comments = this.statet.data
var newComments = comments.concat(comment)
this.setState({data: newComments})
// ajax
},
getInitialState: function() {
return {data: []}
},
componentDidMount: function() {
this.loadCommentsFromServer()
//setInterval(this.loadCommentsFromServer, this.props.pollInterval)
},
render: function() {
return (
<div className="commentBox">
<h1>Comments</h1>
<CommentList data={this.state.data} />
<CommentForm onCommentSubmit={this.handleCommentSubmit} />
</div>
)
}
})
React.render(
<CommentBox url="comments.json" pollInterval={2000} />,
document.getElementById('content')
)
</script>
</body>
</html>