element.dataset in Internet Explorer

I need a way to list the data-* attributes of an element. I would use Object.keys(element.dataset) but IE 9.0 doesn't have dataset support. How should I do this in a way that works for IE 9.0 (and Chrome, Firefox, Safari)?


element.attributes will give you a NamedNodeList with all attributes of the element. Just check the attribute names if they start with data-

var attributes = element.attributes,
    i = attributes.length;

for (; i--; ){
    if (/^data-.*/.test(attributes[i].name)) {


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