JSFiddle - React, Tailwind, and code Playground

HTML

<select id="area">
<option value='1001'>Mong kok</option>
<option value='1002'>Wan Chai</option>
<option value='1003'>Sai Kung</option>
</select>
<input id='address' type='text' />

JavaScript

$(document).ready(function() {
    $('input#address').change(function() {
            var address = $(this).val();
        $('#area option').each(function() {
            var pattern = '/'+$(this).html()+'/';
            if(address.match(pattern))   {
                   $(this).parents('select').val($(this).val());
               }
        }
    });
});