Converting data-* attributes to an object

I'm playing around with the attr-data-* attributes of HTML5 and the corresponding javascript dataset I'm doing alot of dynamic form processing, so I end up getting stuff like this: ``` <input data-feaux="bar" data-fizz="buzz"/> ``` Since `HTMLElement.dataset` returns a `DOM string map`, the only way I can figure out how to convert it into an native object is: ``` var obj = JSON.parse(JSON.stringify(input_el.dataset)) ``` Is there a better way to do this? Edit: Why would I want to do this? Let's say I have many, many of these elements. I want to loop through them all and push them into an array for processing later, i.e. ``` elements = document.querySelectorAll("input") my_data_array = [] for(var i = 0; i < elements.length; i++) { my_data_array.push(elements[i].dataset) } ``` Now I have an array of objects, i.e. `[{feaux: "bar", fizz:"buzz"}....]` that I can work with. However, when I don't convert the `DOM string map` into an object, the array doesn't get populated (i.e. the code above doesn't work) Edit 2 Looking closer, it is actually a `DOM string map`, not an `object`. Correcting typos in the original question to reflect this.