JSFiddle - React, Tailwind, and code Playground

HTML

<div id='#div'>
    <label>Event Location <span class="req">*</span>

    </label>
    <br>
    <input type="radio" name="a22" id="a22_0" value="Lafayette  LA">Lafayette LA
    <br>
    <input type="radio" name="a22" id="a22_1" value="Houston TX">Houston TX
    <br>
    <input type="radio" name="a22" id="a22_3" value="San Antonio TX">San Antonio TX</div>

JavaScript

function replaceTextAfter(selector, newtext) {
    var textnode = $(selector).parent().contents().filter(function () {
        return this.nodeType == 3 && $(this).prev().is($(selector));
    });
    textnode[0].data = newtext;
}

replaceTextAfter('#a22_0', 'abc');