设置jQuery.data()会触发事件吗?

设置jQuery.data()会触发事件吗?

问题描述:

我想知道是否调用 $(。domElement)。data(key,newValue)会触发我能处理的事件吗?我已经尝试绑定更改但是在设置数据时这不会被触发。

I'm wondering if calls to $(".domElement").data("key", "newValue") will trigger an event that I can handle? I've tried binding change but this doesn't get triggered when data is set.

我认为这个问题可能会问类似的东西,但绑定 changeData 也不起作用 - jQuery data()和'changeData'事件

I think this question may be asking something similar, but binding changeData didn't work either - jQuery data() and 'changeData' event.

其实你只是试过附加自定义事件,但你也必须触发它:

Actually you have only tried to attach the custom event but you will also have to trigger it something like:

$('button').click(function (e) {
    $('#someID').data("key", "newValue").trigger('changeData'); 
});

$('#someID').on('changeData', function (e) {    
    alert('My Custom Event - Change Data Called! for ' + this.id);
});

FIDDLE DEMO