JSFiddle - React, Tailwind, and code Playground

JavaScript

var div = document.createElement('div'),
    children;

div.innerHTML = 'Hello, my name is mauricio, and i like <a href="#">Star Wars</a>';
children = div.childNodes;

for (var i = 0, len = children.length; i < len; i++) {
    console.log(children[i]);
    if (children[i].nodeType === 3) {
        children[i].nodeValue = children[i].nodeValue.replace(/a/g, 'R');
    }
}

console.log(div.innerHTML);