Atrybut aktualizacji JavaScript
var element = document.getElementById("elemId");
element.setAttribute("attributeName", "value");
TC5550
var element = document.getElementById("elemId");
element.setAttribute("attributeName", "value");element.setAttribute('attribute', 'value')element.setAttribute(<name>, <value>);
// ex
var aElement = document.querySelector("a");
aElement.setAttribute("href", "https://isitchristmas.com/");
// same as <a href="https://isitchristmas.com/"></a>element.setAttribute(name, value);
element.setAttribute("style", "background-color: red;");document.getElementsByTagName("H1")[0].setAttribute("class", "democlass");Element.setAttribute(name, value);