JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.2.0.min.js"></script>
<select id="parentId">
<option value="something1">1</option>
<option value="something2">2</option>
<option value="something3">3</option>
</select>

JavaScript

function selectDropdown(id, value)
{
    $('#'+id+' option[value="'+value+'"]').prop("selected", 1);
}

selectDropdown("parentId", "something2");