如何监视jQuery中body'data'属性的变化？ [英] How to monitor when the body 'data' attribute changes in jQuery?

问题描述

我的body标签中的数据段属性由滑块更改。我需要在更改时触发基于此值的函数。

I have data-segment attribute in my body tag that is changed by a slider. I need to trigger a function based on the value of this, when it is changed.

我不确定如何在这种情况下附加事件监听器？ / p>

I'm not sure how to attach an event listener in this case though?

推荐答案

`当DOM节点属性发生变化时，没有可靠的跨浏览器方式来接收事件。有些浏览器支持DOM变异事件，但你不应该依赖它们，而你可能会谷歌那句话来了解该技术的命运多变的历史。

`There is no reliable cross-browser way to receive an event when a DOM node attribute is changed. Some browsers support "DOM mutation events", but you shouldn't rely on them, and you may Google that phrase to learn about the ill-fated history of that technology.

如果滑块控件没有触发自定义事件（我认为大多数现代事件都会这样做），那么最好的办法是设置一个 setInterval（）方法来轮询值。

If the slider control does not fire a custom event (I would think most modern ones do), then your best bet is to set up a setInterval() method to poll the value.

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