JSFiddle - React, Tailwind, and code Playground
HTML
<div>jQuery</div>
<div>Javascript</div>
<div>PHP</div>
<div>JQUERY</div>JavaScript
$.extend($.expr[":"], {
"containsIN": function(elem, i, match, array) {
return (elem.textContent || elem.innerText || "").toLowerCase().indexOf((match[3] || "").toLowerCase()) >= 0;
}
});
$("div:containsIN('J')").css("color", "red");