JSFiddle - React, Tailwind, and code Playground

HTML

<div id='x' data-image-x-offset='value'></div>

JavaScript

alert(
    "via " + $.camelCase('image-x-offset') + " first time: " + $('#x').data($.camelCase('image-x-offset')) + "\n" +
    "via image-x-offset: " + $('#x').data('image-x-offset') + "\n" +
    "via " + $.camelCase('image-x-offset') + " again: " + $('#x').data($.camelCase('image-x-offset')) + "\n" +
    "??"
    );