javascript - 重新呈现 Marionette.js CollectionView 的仅更改部分

Question

下面是我目前拥有的代码，它在每次添加或删除模型时重新呈现一个 collectionView。然而，它似乎效率低下，因为它每次都必须渲染整个东西，而我真正需要的只是删除一个 modelView 或添加一个。那么我该如何实现呢？

var CollectionView = Marionette.CollectionView.extend({

    childView: ModelView,

    initialize: function() {
        [ "add", "remove" ].forEach(function(eventName) {
            this.listenTo(this.collection, eventName, this.render, this);
        }.bind(this));
    }

});

在此先感谢您提供的任何帮助!

Answer 1

这已经完成了automatically in Marionette :

When a model is added to the collection, the collection view will render that one model in to the collection of item views.

When a model is removed from a collection (or destroyed / deleted), the collection view will close and remove that model's item view.