JSFiddle - React, Tailwind, and code Playground
by Rejith R Krishnan
HTML
<select id="myselect">
<option value="1">Mr</option>
<option value="2">Mrs</option>
<option value="3">Ms</option>
<option value="4">Dr</option>
<option value="5">Prof</option>
</select>
<select id="youSelect">
<option value="1">Mr</option>
<option value="2">Mrs</option>
<option value="3">Ms</option>
<option value="4">Dr</option>
<option value="5">Prof</option>
</select>
JavaScript
$('#myselect').on('change',function(){
$('#youSelect option').attr('selected','')
theValue = $(this).val();
$('#youSelect option[value=' + theValue + ']').attr('selected', true);
})