Will HTML 5 data attribute support in old browsers?

Question

I\'m storing some custom data in HTML5 data attribute for Jquery processing. will the custom data attribute available in Older browsers?

Answer 1

The attribute itself will work in all browsers. It's just an attribute after all. This would "work" in the sense that the attribute will exist in the DOM:

The native dataset property of elements will not work in older browsers, but getAttribute will:

var random = document.getElementById("x").dataset.random;
// or
var random = document.getElementById("x").getAttribute("data-random");