本文概述
- 参数说明
句法:
collection.toJSON(options)
参数说明options:它包含选项作为集合实例,并将其转换为JSON格式。
让我们举个例子。
请参阅以下示例:
<
!DOCTYPE html>
<
head>
<
title> toJSON Collection Example<
/title>
<
script src="http://img.readke.com/220416/040623JV-0.jpg" type="text/javascript"><
/script>
<
script src="http://img.readke.com/220416/0406232039-1.jpg" type="text/javascript"><
/script>
<
script src="http://img.readke.com/220416/0406234263-2.jpg" 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: 'Sania'}, {name: 'Virat'}, {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>
输出:
将上面的代码保存到tojson.html文件中,然后在新的浏览器中打开此文件。
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