Documentation for addTelemetryInitializer is unclear

I am trying to use addTelemetryInitializer as per the documentation but it is unclear because the docs (API-reference.md) refer to:

window.appInsights = appInsights;

// Add telemetry initializer
appInsights.trackPageView();

but the JS code from the portal does not look like that, it looks like this:

var sdkInstance="appInsightsSDK";window[sdkInstance]="appInsights";var etc...
{
     instrumentationKey:"key"
}); window[aiName] = aisdk,aisdk.queue && aisdk.queue.length ===0 && aisdk.trackPageView({});;

I tried splitting the last line and ended up with

}); window[aiName];
// Add my initializer here
aisdk.queue && aisdk.trackPageView({});

But this doesn’t seem to work. The initializer is not called and I cannot see the call to track in the network monitor. Is there some more clear documentation about how this works with the new JS snippet?

[jakenuts]

Aha! Here is one that works… I left in the check for an empty queue as it seems like a safety check to make sure a duplicate snippet doesn’t cause the page to track twice… Turns out the non-minified snippet (here) sets up the addTelemetryInitializer function to automatically queue calls so you can use it right away rather than pushing your own function on the queue.

    var sdkInstance="appInsightsSDK";... (
    {
      instrumentationKey:"<key>"
    }
    );window[aiName]=aisdk; /*removed track here*/
       
    if (aisdk.queue && 0 === aisdk.queue.length) {
        aisdk.addTelemetryInitializer(function (evlp) {
            evlp.tags["ai.application.ver"] = '<your app version>;
        });        

        aisdk.trackPageView({}); 
    }

[jakenuts]

Same here. Searched all of github for someone adding an application version to telemetry and there’s not a single instance of someone using the new snippet and adding any custom initializers. All my attempts to add a TelemetryInitializer with the current snippet result in the page going untracked (even when the queue empty test is removed). Really odd since this has to be the #1 method for people using AI.