JSFiddle - React, Tailwind, and code Playground
HTML
<div class="simpleCart_items">content 1</div>
<div class="simpleCart_total">content 2</div>
<form id="shopform">
<textarea id="itemsinfo" style="width:320px; height:160px"></textarea>
<input type="text" id="totalprice"/>
<input type="submit"/>
</form>
JavaScript
$('#shopform').submit(function() {
var items = $('.simpleCart_items').text();
var tprice = $('.simpleCart_total').text();
$('#itemsinfo').val(items);
$('#totalprice').val(tprice);
return false;
});