JSFiddle - React, Tailwind, and code Playground

HTML

<form action="" method="POST">
    <input type="text" name="uid" value="12" />
    <input type="submit" name="submit" value="Show" />
</form>
<form action="" method="POST">
    <input type="text" name="uid" value="42" />
    <input type="submit" name="submit" value="Show" />
</form>

JavaScript

$('input[name="submit"]').on('click', function (e) {
    e.preventDefault();
    var vauid = $(this).prev("input[name='uid']").val();
    console.log("ID:  " + vauid);
});