Find position of option in select

by Akram kamal

HTML

<div class=select-group>
    <select>
        <option>a</option>
        <option>b</option>
        <option>c</option>
    </select>
    <select>
        <option>1</option>
        <option>2</option>
        <option>3</option>
    </select>
</div>

JavaScript

$(".select-group").change(function(e) {
    $(this).find("select").prop("selectedIndex", e.target.selectedIndex)
})