Storing data attributes in the 'class' and in HTML5 data attributes

Question

Can anyone suggest an opinion on whether it is better to use the Rails conventions provided in attributes dom_classand dom_idfor semantic helpers such as div_for, rather than HTML5 data attributes such as "data-class" or "data" -id?

those.:

<div id="post_550" class="post">

against

<div data-class="post" data-id="550">

Answer 1

Only one opinion ...

• If you are doing css formatting, use div.class.
• But if you are doing javascript, then I think the html5 attributes make sense.

, - , - . / .