JSFiddle - React, Tailwind, and code Playground

by adeneo

HTML

<div class="classname test">Works</div>
<div class="classname test">if this</div>
<div class="classname test">text</div>
<div class="classname test">is not RED</div>

CSS

.test {color: red}

JavaScript

function removeClass(selector, klass) {

    var elems = document.querySelectorAll(selector);

    
    
    for (var i = elems.length; i--;) {
        var reg = new RegExp("(?:^|\\s)"+ klass +"(?!\\S)", "gi");
        elems[i].className = elems[i].className.replace(reg, "");
    }
}

removeClass('.classname', 'test');