JSFiddle - React, Tailwind, and code Playground

HTML

<p class="abc">
<b>Title:</b>The Second Title
<br>
<b>Author:</b>Mary White
<br>
<b>Date:</b>2004
</p>
<p class="abc">
<b>Title:</b>The First Title
<br>
<b>Author:</b>John Smith
<br>
<b>Date:</b>2003
</p>

JavaScript

$(function() {
    $(".abc").each(function(idx, elm) {
        elm.innerHTML = elm.innerHTML.replace("Mary White", "Mary B. White");
    });
});