how to get the attribute value 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: how to get element by attribute value in javascript

document.querySelectorAll('[data-foo="value"]');

Example 3: js getattribute

const link = document.querySelector('a');

console.log(link.getAttribute('href'));

Example 4: javascript get attribute

<div id="id_of_the_element" data-attribute_name="foo"></div>

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 5: dom element get attribute

document.getElementById('id1').getAttribute('attribute');

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