javascript get element attribute code example

Example 1: javascript get attribute

//HTML
//


var elem = document.getElementById("elem");
elem.getAttribute("data-id"); // "4hJ3s"

Example 2: javascript get attribute

var elem = document.getElementById("id_of_the_element");
var attribute_value = elem.getAttribute("data-attribute_name");

//OR with jquery...
var attribute_value = $('#id_of_the_element').attr('data-attribute_name');
//OR...
var attribute_value = $('#id_of_the_element').data('attribute_name');

Example 3: get element attribute javascript

var x = document.getElementsByTagName("H1")[0].getAttribute("class");

Example 4: js get element by attribute

//find first element with "someAttr" attribute
document.querySelector('[someAttr]')

Example 5: js get element by attribute

//find all elements with "someAttr" attribute
document.querySelectorAll('[someAttr]')