Misko Hevery
Rethinking web application design for fastest possible time to interactive
#1about 2 minutes
Why most modern websites fail Google PageSpeed tests
Current web frameworks consistently produce low PageSpeed Insight scores because their fundamental approach to interactivity is flawed.
#2about 2 minutes
Introducing Qwik for instant time to interactive
Qwik is an open-source framework that achieves top performance scores by sending minimal JavaScript and prioritizing HTML.
#3about 2 minutes
The high cost of hydration in modern frameworks
Traditional frameworks must download and re-execute all application code on the client to attach event listeners, a slow process known as hydration.
#4about 2 minutes
How Qwik bypasses hydration with resumability
Qwik serializes listener and state information directly into the HTML, allowing the client to become interactive instantly without re-executing code.
#5about 2 minutes
Demonstrating Qwik's minimal JavaScript footprint
A live demo shows Qwik's loader is under one kilobyte and that additional code is only lazy-loaded upon user interaction.
#6about 5 minutes
The philosophy of doing nothing and fine-grained lazy loading
Qwik's core principles are to do no work upfront, remain stateless by storing information in the DOM, and only execute the exact code needed for an interaction.
#7about 5 minutes
How eager closures prevent effective lazy loading
Event listeners and reactive systems create closures that pull in large amounts of synchronous code, preventing fine-grained lazy loading.
#8about 4 minutes
Understanding the replayable vs resumable application model
Unlike replayable frameworks that must re-run everything, Qwik's resumable model can continue execution from the server-rendered state at any point.
#9about 5 minutes
How Qwik enables fine-grained and efficient DOM updates
By storing state relationships in the DOM, Qwik can query for and update only the necessary components without setting up eager listeners.
#10about 2 minutes
Rethinking web development by embracing the DOM
Modern frameworks often abstract away the DOM, but embracing its declarative and lazy-loadable nature is key to building faster applications.
#11about 2 minutes
Conclusion and key takeaways for building fast apps
The key to instant applications is to adopt a resumable, stateless, and DOM-centric approach with fine-grained lazy loading as a core primitive.
#12about 4 minutes
Q&A: Mobile UX, prefetching, and module federation
Qwik can use prefetching strategies for mobile UX, and its core design naturally provides the benefits of module federation.
#13about 6 minutes
Q&A: Project status, deployment, and caching strategies
Qwik applications can be deployed anywhere and benefit from caching server-rendered HTML as static files, which the client can then resume.
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Matching moments
02:13 MIN
Qwik's resumable approach for instant interactivity
Interactive server side components
07:48 MIN
Q&A on performance, architecture, and PWA capabilities
Interactive server side components
04:05 MIN
Demonstrating lazy loading and execution with Qwik
Qwik: Making sure that easy is same as performant
02:29 MIN
The web performance problem with modern frameworks
Interactive server side components
05:17 MIN
Introducing resumability as an alternative to hydration
Qwik: Making sure that easy is same as performant
05:57 MIN
Introducing islands architecture to reduce javascript payload
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03:31 MIN
How replayable frameworks cause slow startup times
Interactive server side components
03:35 MIN
Q&A on security, tooling, and framework adoption
Qwik: Making sure that easy is same as performant
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