Backbone.js 集合获取方法用于使用同步方法获取集合中的默认模型集。
用法:
collection.fetch(options)
参数说明:
options:它指定 "success" 或 "error" 回调,它们都将作为参数传递。
我们举个例子来部署 fetch 方法。
看这个例子:
<!DOCTYPE html>
<head>
<title>Fetch 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">
//The sync() method represents state of a model
Backbone.sync = function(method, model) {
//The 'method' gives 'read' state of the model by representing data in JSON format
document.write("The fetched details are:",method + ":" + JSON.stringify(model));
};
//The collection instance 'details' contains the values which are to be fetched in the collection
var details = new Backbone.Collection({
Name:"Narendra Modi",
Country:"India"
});
//This will display the model state by delegating the 'sync()' method
details.fetch();
</script>
</body>
</html>
输出:
将上述代码保存在 fetch.html 文件中,然后在新浏览器中打开此文件。
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