can/bower_components/modernizr/feature-detects/dom-dataset.js

MIT-licensed, client-side, JavaScript framework that makes building rich web applications easy.

// dataset API for data-* attributes
// test by @phiggins42

Modernizr.addTest('dataset', function(){
  var n = document.createElement("div");
  n.setAttribute("data-a-b", "c");
  return !!(n.dataset && n.dataset.aB === "c");
});