javascript element get attribute 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: how to get element by attribute value in javascript
document.querySelectorAll('[data-foo="value"]');
Example 3: dom element get attribute
document.getElementById('id1').getAttribute('attribute');