Adding object to a Collection in the first position with backbone?

问题

I have this simple function to add a Folder to a collection called 'Folders'.

folderAdded: function(folder) {
            this.folders.add(folder);
            this.$el.empty();
            this.render();
    }

By default this will add the object in the first position, so it will appear the first one. As my query is order by created, if I refresh the page, the object will go the first place.

How can I add the object at the beginning of the collection?

回答1:

You can use unshift method of the collection.

Add a model at the beginning of a collection. Takes the same options as add

来源：https://stackoverflow.com/questions/36573664/adding-object-to-a-collection-in-the-first-position-with-backbone