JSFiddle - React, Tailwind, and code Playground

HTML

<select id="selectBox">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
</select>
<div id="result"></div>

JavaScript

$(function(){
    var inputString="<input type='text'>";
    $('#selectBox').on('change',function(){
        $('#result').html('');
        for(var i = 0;i<$('#selectBox :selected').val();i++)
        {
            $('#result').append(inputString);
        }
    });
});