Backbone.js学习之Collection
首先,当然是一如既往地看官方文档的解释。
Collections are ordered sets of models.
翻译:
Collections是models的一个集合。
关于book和bookshelf的例子
var Book = Backbone.Model.extend({
defaults: {
title: null
},
initialize: function() {
console.log("hi, you create me!");
}
});
var BookShelf = Backbone.Collection.extend({
model: Book
});
var book1 = new Book({title : 'book1'});
var book2 = new Book({title : 'book2'});
var book3 = new Book({title : 'book3'});
//注意这里面是数组,或者使用add
//var bookShelf = new BookShelf([book1, book2, book3]);
var bookShelf = new BookShelf;
bookShelf.add(book1);
bookShelf.add(book2);
bookShelf.add(book3);
bookShelf.remove(book3);
//基于underscore这个js库,还可以使用each的方法获取collection中的数据
bookShelf.each(function(book){
console.log(book.get('title'));
});
Collection还有很多作用,这里先留个坑。以后学到了在来填!