Boots the application, rehydrate the app state and calls back to notify the ready state of the app.

<script>{{{state}}}</script>
<script>
app.yui.ready(function (err) {
    if (err) {
        throw err;
    }
    app.yui.use('foo', 'bar', function (Y) {
        // do something!
    });
});
</script>

Like app.yui.use() but instead delegates to YUI().require() after getting the seed ready. The callback passed to require() receives two arguments, the Y object like use(), but also imports which holds all of the exports from the required modules.

<script>{{{state}}}</script>
<script>
app.yui.require('foo', 'bar', function (Y, imports) {
    var Foo         = imports['foo'],
        namedExport = imports['bar'].baz;
});
</script>

Attaches the seed into the head, then creates a YUI Instance and attaches modules into it. This is equivalent to YUI().use() after getting the seed ready. This method is a bootstrap implementation for the library, and the way you use this in your templates, is by doing this:

<script>{{{state}}}</script>
<script>
app.yui.use('foo', 'bar', function (Y) {
    // do something!
});
</script>

Where state defines the state of the express app, and app.yui defines the helpers that express-yui brings into the client side.