渲染为jQuery插入DOM的元素

Question

In my app I use AJAX to fetch a specific view (template) file and append it to the DOM using jQuery on page load:

$.get('/ajax/load/myview', function(view) {
    siteFetchComplete();
    $('#container').append(view);
});

There are various elements in the view that I would like to reference and render to using React . For example, to load a series of helpdesk tickets I might do something like:

function siteFetchComplete() {
    var TicketBox = React.createClass({
        render: function() {
            return (
                <h1>Helpdesk Tickets</h1>
            );
        }
    });

    React.render(
        <TicketBox />,
        $('#tickets')
    );
}

where $('#tickets') is an element that was appended after the AJAX request processed.

How do I reference $('#tickets') when calling React.render ? Currently I receive a Error: Invariant Violation: _registerComponent(...): Target container is not a DOM element. error because React can't see the element when called this way.

Answer 1

You're passing a jQuery wrapper object to React instead of a DOM element. Instead you should unwrap it using jQuery's get() method and pass the raw DOM object to React:

$('#tickets').get(0) // returns the DOM element

Also move the call to siteFetchComplete() to after the append() operation, otherwise jQuery will be trying to find the element before it exists!