Backbone.$
描述 (Description)
它允许Backbone将对象用作DOM库。
语法 (Syntax)
Backbone.$ = $;
例子 (Example)
<!DOCTYPE html>
<html>
<head>
<title>Utility Example</title>
<script src = "https://code.jquery.com/jquery-2.1.3.min.js"
type = "text/javascript"></script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js"
type = "text/javascript"></script>
</head>
<body>
<script>
//The value specified for the variable '$' in the global scope
var $ = {version:'0.1.1',name:'IoWiki'};
</script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js"
type = "text/javascript"></script>
<script type = "text/javascript">
//Set the value for the variable after Backbone is loaded
Backbone.$ = {version:'1.1.2',name:'IoWiki'};
//It displays the defined values in the JSON format
document.write("The values after loading Backbone are: "
,JSON.stringify(Backbone.$));
</script>
</body>
</html>
输出 (Output)
让我们执行以下步骤来查看上述代码的工作原理 -
将以上代码保存在backbone-dollar.htm文件中。
在浏览器中打开此HTML文件。
