Wrap (monkey-patch) Google Tag Manager push method

monkey-patch-gtm-push.md

To console.log every argument pushed to Google Tag Manager, use

window.dataLayer = window.dataLayer || [];

// Save the original push method
const originalPush = window.dataLayer.push;

// Monkey patch push
window.dataLayer.push = function() {
    // Log each argument individually
    for (let i = 0; i < arguments.length; i++) {
        console.log('dataLayer.push argument: ', arguments[i]);
        // or console.log('dataLayer.push argument:', JSON.stringify(arguments[i]));
    }

    // Call original push with the same arguments
    return originalPush.apply(window.dataLayer, arguments);
};

NOTE: The window.dataLayer.push() method is commonly used with Google Tag Manager to send data.