JSFiddle - React, Tailwind, and code Playground

HTML

<div class="controls">
    
    
    <select id="oberservationType" class=" pull-left">
        <option>Choose</option>
        <option>Mauris elementum</option>
        <option>Eros id dapibus</option>
        <option>Vestibulum erat</option>
        <option>Ultricies lacus magna</option>
    </select>
    <button class="btn btn-link remove" type="button">Reset</button>
</div>

JavaScript

$('.remove').click(function() {
    $(this).prev('select').val('');
});