HTML5数据属性与价值？

Question

除了语义和浏览器支持之外，原始值属性和HTML5数据属性之间是否还有区别？

<div id="mydiv" value="myvalue" data-somedata="mydata"></div>

Answer 1

Well, value is not a standard attribute for a div element so your html is not valid. If you want to honor html5 specification, you'll have to use data- attributes.

So in short: data- attributes is valid in html5 while your value approach is invalid on all html versions.