Your weekly celebration of JavaScript and the web. This show records LIVE on Thursdays at 1pm US/Eastern time. Panelists include Jerod Santo, Feross Aboukhadijeh, Kevin Ball, Amelia Wattenberger, Nick Nisi, Divya Sasidharan, Mikeal Rogers, Chris Hiller, and Amal Hussein. Topics discussed include the web platform (Chrome, Safari, Edge, Firefox, Brave, etc), front-end frameworks (React, Ember, Angular, Vue, etc), Node.js, web animation, SVG, robotics, IoT, and much more. If JavaScript and/or the web touch your life, this show’s for you. Some people search for JSParty and can’t find the show, so now the string JSParty is in our description too.
Getting a pulse on your Core Web Vitals 🩺
This week, Amal and Nick are joined by Rick Viscomi and Annie Sullivan from the Chrome team to dive into Core Web Vitals, a set of performance metrics geared towards helping developers surface web page quality signals that are key to delivering great user experiences.
We deconstruct the different vitals and learn how they are helpful, as well as introduce the newest vital to hit the scene, Interaction to Next Paint (INP). Join us for a fun and nerdtastic discussion as we dive into the humbling universe of web performance!
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Featuring:
- Rick Viscomi – Website
- Annie Sullivan – Mastodon, Twitter, Website
- Amal Hussein – Twitter, GitHub
- Nick Nisi – Twitter, GitHub, Website
Show Notes:
- Web performance resources
- Why speed matters
- Core Web Vitals docs
- Interaction to Next Paint (INP)
- Largest Contentful Paint (LCP)
- Cumulative Layout Shift (CLS)
- Measuring Core Web Vitals in the field
- web-vitals.js library
- Web Vitals Chrome extension
- PageSpeed Insights
- Chrome UX Report
- Core Web Vitals Tech Report
- In The Loop by Jake Archibald (🔥🔥🔥 Event Loop Talk referenced on show)
- Scheduler API Polyfill
- Scheduler.yield API Origin Trial
- Speedcurve - Web performance monitoring
- WebPageTest - Website performance and optimization test
- WPO stats - Case studies and experiments demonstrating the impact of web performance optimization (WPO)
- Partytown - Run 3rd Party Scripts from a Web Worker
Something missing or broken? PRs welcome!