Google Analytics 4: how to get the name of global object (gtag)

Question

In Google Analytics Classic/Universal Analytics we could get the name of global object using such code:

window['GoogleAnalyticsObject']

And then we could get the object by its name:

window[window['GoogleAnalyticsObject']]

Looks like in GA4 such approach is not working, I am getting undefined if I try to get this name. Is it possible somehow to get this name in GA4 ?

Also this is my use case: I have a site on which GA4 was added, there is a possibility that the global object - gtag was renamed (but I don't know about that), theafore I need to get current name of the object and then to get the object by its name.

Answer 1

Per the updated Google Analytics 4 site tag documentation, it appears that object may now be in window.dataLayer. I'm thinking either:

window[window.dataLayer['GoogleAnalyticsObject']]

or

window.dataLayer['GoogleAnalyticsObject']