javascript get attribute
//HTML
//<div id="elem" data-id="4hJ3s"></div>
var elem = document.getElementById("elem");
elem.getAttribute("data-id"); // "4hJ3s"javascript get attribute
//HTML
//<div id="elem" data-id="4hJ3s"></div>
var elem = document.getElementById("elem");
elem.getAttribute("data-id"); // "4hJ3s"how to get element by attribute value in javascript
document.querySelectorAll('[data-foo="value"]');javascript hasownproperty
var person = {
"first_name": "Bob",
"last_name": "Dylan"
};
person.hasOwnProperty('first_name'); //returns true
person.hasOwnProperty('age'); //returns falsejavascript element read attribute
document.getElementById('id1').getAttribute('attribute');getattribute javascript
let attribute = element.getAttribute(attributeName);getattribute javascript
<!-- example div in an html DOC -->
<div id="div1">Hi Champ!</div>
// in a console
const div1 = document.getElementById('div1');
//=> <div id="div1">Hi Champ!</div>
const exampleAttr= div1.getAttribute('id');
//=> "div1"
const align = div1.getAttribute('align')
//=> nullCopyright © 2021 Codeinu
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