JSFiddle - React, Tailwind, and code Playground
by ChrisStanyon
HTML
<select id="ddPromotionReason">
<option value="opt1">Option 1</option>
<option value="opt2">Option 2</option>
<option value="opt3" selected="selected">Option 3</option>
<option value="opt4">Option 4</option>
</select>
JavaScript
$('#ddPromotionReason option:first-child').attr("selected", "selected");