JSFiddle - React, Tailwind, and code Playground

HTML

Test
<br>
    <span>Test</span>

JavaScript

$.fn.removeText = function() {
    for (var i=this.length-1; i>=0; --i) removeText(this[i]);
};
function removeText(node) {
    if (!node) return;
    for (var i=node.childNodes.length-1; i>=0; --i) {
        var childNode = node.childNodes[i];
        if (childNode.nodeType === 3) node.removeChild(childNode);
        else if (childNode.nodeType === 1) removeText(childNode);
    }   
}

    $('body:not(span)').removeText();