本文概述
Backbone.js事件触发方法将调用给定事件的回调函数。
句法:
object.trigger(event, [args])
参数说明
事件:用于绑定对象。
args:用于将值/参数传递给回调函数。
让我们举个例子。
请参阅以下示例:
<!DOCTYPE html>
<head>
<title>Event Trigger 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">
//Created an object 'myVal' and extended it using Backbone.Events method
var myVal = _.extend({title:'srcmini', site:'www.srcmini02.com'}, Backbone.Events);
//The on() method will bind the callback function to an object
myVal.on('myFunc', function () {
document.write("The triggered value for site is: ");
document.write(this.site); //value of site will get displayed by referring the current object
});
// The trigger() method triggers the 'myFunc' event on 'myVal'
myVal.trigger('myFunc');
</script>
</body>
</html>
输出:
将上面的代码保存在trigger.html文件中,然后在浏览器中打开此文件。
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