JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<body>
    Hello World!
</body>

JavaScript

var itemQuantity = 5;

var orderItemQuantity = $('<input/>', {
    type: 'text',
    name: 'order_detail[][quantity]',
    value: itemQuantity
});

$("body").append(orderItemQuantity);