Deferred notify and progress Callbacks

deferred_notify_progressCallbacks.js

var dfd = $.Deferred();
dfd.progress(function(arg){ console.log(arg,1)});
dfd.notify('this is first time notify:I am jazz')
dfd.progress(function(arg){ console.log(arg,2)});
dfd.notify('this is second time notify: I love this game');
dfd.reject('sorry,badthing arise');
dfd.progress(function(arg){ console.log(arg,3)});
dfd.notify("this is third time notify: I will come back ?")
dfd.progress(function(arg){ console.log(arg,4)});

当延迟对象更新后（rejected/resolved）任何新增加的过程回调（progressCallbacks）会立即执行，并且传递最后一次notify 时传递的参数，而忽然后面的notify，当然也忽然了参数
ref: http://www.oschina.net/translate/what-is-the-point-of-promises