toJSON
优质
小牛编辑
147浏览
2023-12-01
描述 (Description)
它使用JSON格式返回集合中每个模型的属性哈希的副本。
语法 (Syntax)
collection.toJSON(options)
参数 (Parameters)
options - 它包含选项作为集合实例并将其转换为JSON格式。
例子 (Example)
<!DOCTYPE html>
<html>
<head>
<title>Collection Example</title>
<script src = "https://code.jquery.com/jquery-2.1.3.min.js"
type = "text/javascript"></script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js"
type = "text/javascript"></script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js"
type = "text/javascript"></script>
</head>
<body>
<script type = "text/javascript">
//'Player' is a model and contains defualt value for the model
var Player = Backbone.Model.extend ({
defaults: {
name: "sachin"
}
});
//The 'PlayersCollection' is a collection instance and model 'Player' is specified by overriding
//the 'model' property
var PlayersCollection = Backbone.Collection.extend ({
model: Player
});
$(function() {
var mycollection = new PlayersCollection();
//The set() method sets the values for the 'name' attribute
mycollection.set([
{name: 'sehwag'},
{name: 'raina'},
{name: 'dhoni'}
]);
//The JSON.stringify() method returns values of the collection in the JSON format
document.write("The collection values are:", JSON.stringify(mycollection.toJSON()));
});
</script>
</body>
</html>