JSFiddle - React, Tailwind, and code Playground
by InferOn
HTML
<select id="idserver" name="serverid">
<option value='0'>number one</option>
<option value='1'>number two</option>
</select>
<br/>
<input type="checkbox" id="check" class="calc" name="access[a]" value="2" />example
JavaScript
$("#idserver").change(function(){
$('input:checkbox').removeAttr('checked');
});