小编non*_*mpf的帖子

期望下面的代码将无序列表及其子<"li" />节点附加到document.body,<"ul" />但没有任何子节点并且在控制台中有错误消息就可以了:

React.createElement: type should not be null or undefined. It should be a string (for DOM elements) or a ReactClass (for composite components).

(React.js ver.0.13)

var ListView = React.createClass({
    render: function() {
        var items = this.props.data.map(function(item) {
            return ItemDelegate({key:item.id, data:item.id});
        }.bind(this));
        return (React.createElement('ul', null, items));
    }
});

var ItemDelegate = React.createFactory(ListViewChildren);

var ListViewChildren = React.createClass({
    render: function(){
        return (React.createElement('li', {key: this.props.key, data: this.props.data}));
    }
});

var Wrapper = React.createClass({
    render: function() {
        return (React.createElement(ListView, …