How to access AlpineJS Data variable outside scope

This is actually revealing a one-liner solution because Rahul Rajput of rajputrahul.com has already posted a good article and example of how to access a AlpineJS variable outside of its scope at https://www.rajputrahul.com/access-alpinejs-variable-outside-scope/ - but this solution is valid for AlpineJS 2.x only - in version 3.x there is a change in the way its accessed.

In AlpineJS 3.x (while adding https://unpkg.com/alpinejs@3.13.3/dist/cdn.min.js in the script tag to load AlpineJS) :

document.getElementById('modalBox')._x_dataStack[0].open = false;

Full Source Code :

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>How to access AlpineJS Data variable outside scope</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script src="https://unpkg.com/alpinejs@3.13.3/dist/cdn.min.js" defer></script>
</head>
<body>
    <h1 class="text-2xl">Example one</h1>
    <div x-data="{open: false}" @keydown.escape="open=false" x-clock>
        <div class="px-8 py-8 align-center">
            <button @click="open=!open" class="px-3 py-1 border shadow-md bg-indigo-500 text-white">Toggle button</button>
            <div x-show="open" id="modal">
                This is modal text.  
                <br>
                <button @click="open=false" class="px-3 py-1 border shadow-md bg-red-500 text-white">Close Me</button>
            </div>
        </div>
    </div>
    <h1 class="text-2xl">Example two</h1>
    <div id="modalBox" x-data="{open: false}" @keydown.escape="open=false" x-clock>
        <div class="px-8 py-8 align-center">
            <button @click="open=!open" class="px-3 py-1 border shadow-md bg-indigo-500 text-white">Toggle button</button>

            <div x-show="open" id="modal">
                This is modal text.  
                <br>
                <button @click="open=false" class="px-3 py-1 border shadow-md bg-red-500 text-white">Close Me</button>
            </div>
        </div>
    </div>
    <button onclick="hideBox()" class="px-3 py-1 border shadow-md bg-red-500 text-white">Toggle button (Outside Scope)</button>
    <script>
        window.hideBox = function(){
            // document.getElementById('modalBox').__x.$data.open = false;
            document.getElementById('modalBox')._x_dataStack[0].open = false;
        }
    </script>
</body>
</html>