Indstilling af enkelt attribut
$("img").attr("src", "/images/banner.jpg.webp");Indstilling af enkelt attribut (med funktion)
$("div").attr("id", function (arr) ( return "div-id" + arr; ))Indstilling af flere attributter
$("img").attr(( src: "/images/banner.jpg.webp", title: "banner", alt: "banner" ));Få attribut
var $source = $("img").attr("src");