對於給定的事件呼叫回撥函式。
object.trigger(event,[args])
<!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:'YiiBai!!!', site:'www.tw511.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>
讓我們進行以下步驟來看看上面的程式碼工作:
儲存上述程式碼在檔案trigger.html
在瀏覽器中開啟這個HTML檔案。