The Cost Of JavaScript in 2023

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@reactive_dude JAVASCRIPT IS GOOD...IN MODERATION

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Patterns for web applications Portfolio Content Storefront Social Network Immersive Holotype Personal Blog CNN Amazon Facebook Figma Interactivity Minimal Linked Articles Purchase Multi-Point, Real-time Everything Session Depth Shallow Shallow Shallow - Medium Extended Deep Values Simplicity Discover-ability Load Performance Dynamicism Immersiveness Routing Server Server, Hybrid Hybrid, Transitional Transitional, Client Client Rendering Static Static, SSR Static, SSR SSR CSR Hydration None Progressive, Partial Partial, Resumable Any None (CSR) Example Framework 11ty Astro, Elder Marko, Qwik, Hydrogen Next, Remix Create React App https://dev.to/this-is-learning/patterns-for-building-javascript-websites-in-2022-5a93

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PROGRESSIVE HYDRATION

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FACTOR IN VISIBILITY

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@addyosmani

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INP

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https://web.dev/optimize-long-tasks/ A) B)

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https://philipwalton.com/articles/why-web-developers-need-to-care-about-interactivity/ *

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* Background compilation: 1-2% improvement to main thread V8 time time reduction. Background parsing and other improvements to parse reduced overall V8 load time by up to 10-20%

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~20-40% reduction in parse and compilation time during load.

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@ChrisArter npm install WHAT’S IN YOUR JAVASCRIPT BUNDLE?

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Static import

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Static import

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Code-splitting bundles

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Dynamic Import

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Dynamic Import

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Code-splitting bundles

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Route and component splitting

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“Invisible” Visible

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Import On Visibility

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Import On Visibility

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How and where do I want to render content? Check out Lydia Hallie’s great “Rendering Patterns” talk

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Rehydration

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Partial Hydration

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Islands Architecture

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Rehydration

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Progressive Hydration

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RESUMABLE HYDRATION Check out “Hydration is pure overhead” by Misko Hevery

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https://twitter.com/shuding_

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Streaming Server Rendering

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Doodles courtesy Dan Abramov

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Selective Hydration: before

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Selective Hydration: after

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