JSFiddle - React, Tailwind, and code Playground

HTML

<div id="info"/>
<!--<fieldset id='details'>
    <legend> Product details: </legend>
    <fieldset>
        <legend>General info</legend>
            <label> Name:</label>
            <input id="name"/>
            <br>
            <label>Supplier ID (1-29):</label>
            <input id="supplier"/>
            <br>
            <label>Category ID (1-8):</label>
            <input id="category"/>
            <label style="height:0; display: none; color: Teal" id="catInfo"></label>
            <br> 
            <label>Quantity per unit:</label>
            <input id="qpu"/>
            <br>
            <div>
                <label>Price in:</label>
                <input type='radio' name="currency" value="en-US" checked/>
                <label>USD</label>
                <input type='radio' name="currency" value="bg"/>
                <label>BGN</label>
                <input type='radio' name="currency" value="en-GB"/>
                <label>GBP</label>
            </div>
            <label>Unit price:</label>
            <input id="price"/>
            <br>
    </fieldset>

    <fieldset>
        <legend>Storage</legend>
            <label>Units in stock:</label>
            <input id="stock"/>
            <label style="height:0; display: none;" id="stockInfo"></label>
            <br>
            <label>Units on order:</label>
            <input id="order"/>
            <br>
            <label>Reorder level:</label>
            <input id="reorder"/>
            <br>
    </fieldset>

    <fieldset>
    <legend>Unbound fields</legend>
        <label>Supply:</label>
        <input id="percent"/>
        <button onclick="calculate()">Calculate</button>
        <br>
        <label>Unrelated phone field:</label>
        <input id="mask1"/>
        <br>
            <label>Unrelated date:</label>
        <input id="date"/>
        <br>
        <label>'To Upper' machine:</label>
        <input id="mask2"/>
        <br>
     </fieldset>
    
    <button...

JavaScript

$('#details').find('input').each(function(index){
    $("#info").append(index + ",");  
});