JSFiddle - React, Tailwind, and code Playground

HTML

<form id="theForm" action="foo.php">
    <input type="hidden" id="submitClicked" />
    <input type="submit" onclick="javascript:document.getElementById('submitClicked').value='forward';return true;" id="linkName" value="Forward" />
    <input type="submit" onclick="javascript:document.getElementById('submitClicked').value='back';return true;" id="back" value="Back" />
</form>

JavaScript

$(document).ready(function() {
    $("#theForm input").click(function(e) {
        alert($("#submitClicked").val());
        return false;
    });
});