JSFiddle - React, Tailwind, and code Playground
HTML
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/dot-luv/jquery-ui.css">
<span id="thisone">
The info I want
<span id="notthisone">
I don't want any of this nonsense
</span>
</span>
JavaScript
var result = $('#thisone').contents().first().text();
alert(result);