JSFiddle - React, Tailwind, and code Playground

HTML

<select name="listku" >
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
</select>

<div id="jmena">

</div>

JavaScript

$("select[name=listku]").change(function() {
    for (var i = 0; i < $(this).val(); i++) {
        $("#jmena").append('<input type="text" name="jmeno[]"/>');
    }
})