发布于 2015-08-14 15:19:45 | 97 次阅读 | 评论: 0 | 来源: 网络整理
它检查模型状态下用validate()方法,并检查验证每个属性。
model.isValid()
<!DOCTYPE html>
<head>
<title> Model 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>
<script type="text/javascript">
var Person = Backbone.Model.extend({
defaults: {
name: '',
age: 25,
},
validate: function(attributes) {
if (attributes.name == '') {
document.write("please enter the name!!!!");
}
}
});
var person = new Person({
name: 'John'
});
document.write("The passed value for attribute 'name' is: ", person.isValid());
</script>
</head>
<body></body>
</html>
让我们进行以下步骤来看看上面的代码工作:
保存上述代码在文件isvalid.html
打开浏览器这个HTML文件。