JSFiddle - React, Tailwind, and code Playground

by Sergei Marochkin

JavaScript

function validHTML(element) {
console.log(document.createElement(element).toString());
    return document.createElement(element).toString() != "[object HTMLUnknownElement]";
}

console.log(validHTML('b'));
console.log(validHTML('time'));
console.log(validHTML('whatever'));