In this episode of Adventures in Angular Charles Max Wood joins Tammy Everts at JAMstack Confer. Tammy gives a listeners a sneak peek into her talk about website performance, more specifically JavaScript performance. Charles discusses the performance of Devchat.tv and Google Lighthouse scores. Tammy explains that while Google Lighthouse is good it isn’t completely reliable and can miss chunks of time when your JavaScript is failing and you have unhappy users.Tammy shares ways to drill down and see how your JavaScript is behaving in the wild. She talks about blocking Javascript which every developer is familiar with and non-blocking JavaScript that has high blocking CPU time which makes for janky sites. Tammy and Charles discuss what CPU is and what it measures. Tammy names resources and tools to help avoid this problem. Rules of thumb for avoiding these issues are explained by Tammy. First, Reduce, make sure all the JavaScript needs to be there. Next, Monitor, track your metrics. She also suggests working with vendors and maintaining a performance budget for metrics that matter. The interview ends with a little about Speedcurve and what they do. Tammy is the CXO of Speedcurve. Panelists

• Charles Wood

Guest:

• Tammy Everts

 Adventures in Angular is produced by DevChat.TV in partnership with Hero DevsSponsors

• CacheFly

Links

• https://jamstackconf.com/sf/
• https://speedcurve.com/
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• https://twitter.com/angularpodcast

Special Guest: Tammy Everts.

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