JSFiddle - React, Tailwind, and code Playground

HTML

<div class="tovar" id="41">
    <div class="tovar-price">2</div>
    <input class="tovar-count" type="text" value="2" size="3"><span class="plus"></span><a href="#" class="check">Получить значения "кол-ва" и "цены" для первого товара с id="41"</a>

</div>
<div class="tovar" id="42">
    <div class="tovar-price">4</div>
    <input class="tovar-count" type="text" value="3" size="3"><span class="plus"></span><a href="#" class="check">Получить значения "кол-ва" и "цены" для второго товара с id="42"</a>

</div>

JavaScript

$(document).ready(function () {
    $('.check').click(function () {

        var product_amount = $("input.tovar-count").val();
        product_amount = parseInt(product_amount);
        alert(product_amount);
        var product_price = $("div.tovar-price").text();
        product_price = parseInt(product_price);
        alert(product_price);



    });
});