5 Advanced GTM Tips (Part 2) - Capture vs. Bubbling, Custom Listeners and function variables

[@alvar_p4l543]

Top notch tutorial Julian. Thank you!

[@MeasureSchool]

All good!

[@madshendriksen1795]

Thanks for sharing so many great tips 👍

[@joeroach9618]

Heavy stuff that Julian, thank you! Can you recommend a good place to learn JavaScript for Tag Manager? This is definitely missing from my tool kit. I’m also have a problem recording session times on landing pages with a very high bounce rate - is there a way that I can use custom listeners to measure the time between the DOM ready and page unload (perhaps?) events?

[@ramonkloosterman9190]

Nice one again Julian. Keep it up

[@matthewmiao1728]

When is the new course is coming out, Julian

[@gabejordan3907]

Nice! Thank You. Quick question. If a website has the old google analytics snippet for the tracking code and you want to use GTM instead now. If you do not delete the old code snippet will it skew the data?

[@ramonkloosterman9190]

If you migrate to GTM and you are deploying all your tags via GTM, delete your old GA snippet. Within the GA snippet there is a line of code that sends a pageview tag to Google. If you also implemented a pageview tag via GTM you will measure certain dimension and metrics double. So yes it will skew your data. Hopes this answers your question

[@Markor91]

You didn't declare 'event' in event listener callback function