require(['jquery'], function ($) { $(document).ready(function () { $("img").each(function () { if (!$(this).attr("alt")) { let src = $(this).attr("src"); if (src) { let fileName = src.substring(src.lastIndexOf('/')); /** * Replace .jpg|.png|.bmp|.svg|/|-| of filename equal whitespace * @type {string} */ let alt = fileName.replace(/.jpg|.png|.gif|.bmp|.svg|\/|-/gi, ''); $(this).attr("alt", alt.trim()); } } }); }); });