html atribit in javascript code example
Example 1: javascript get attribute
//HTML
//<div id="elem" data-id="4hJ3s"></div>
var elem = document.getElementById("elem");
elem.getAttribute("data-id"); // "4hJ3s"
Example 2: put new attribute on html tag using javascript
// Here's what you do for the style attribute
span.setAttribute("style", "width:110%;float:center;left-margin:-10px;top-margin:-10;");