Polymer

on YouTube ↗23m

" summary

YouTube rebuilds its desktop site on Polymer, running a presentational Innertube API into 400 YouTube-specific components (over 1,000 across properties) and serving 1.5 billion logged‑in users and one billion hours of video per day. The migration starts with smaller apps (YouTube Gaming, YouTube TV) and uses Storybook, screenshot diffing, a global scheduler and lazy budgeted rendering to keep UI work between media callbacks, yielding up to 15% faster pages; opt in at youtube.com/new.

AI-written summary · about

" chapters (9)

1. 0:00Intro
2. 0:25What is YouTube
3. 0:46How popular is YouTube
4. 1:55How big is YouTube
5. 11:35Universal Data API
6. 14:24Rendering
7. 17:18Development
8. 19:06Storybook
9. 20:33State of Polymer

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