Retrieve Groups of prefixed data attributes (data-options-id, data-options-name, etc)

jquery.extend.data-grouping.js

  function camelize(str) {
      return str.replace(/(?:^\w|[A-Z]|\b\w)/g, function (letter, index) {
          return index == 0 ? letter.toLowerCase() : letter.toUpperCase();
      }).replace(/\s+/g, '');
  }
  
  $.fn.extend({
    dataGrouping: function (attributeName) {
      var regExp = new RegExp('^' + attributeName),
        attributesFound = {};
      this.each(function (idx, element) {
        var i,
          attributes = element.dataset,
          attributesLength = element.dataset.length;
        for (var attr in attributes) {
          if (regExp.test(attr)) {
            var key = camelize(attr.replace(attributeName, ''));
            attributesFound[key] = attributes[attr];
          }
        }
      });
      return attributesFound;
    }
  });
  
  // var additionalData = $('.items:first').dataGrouping('additional');