Upgrade to Pro — share decks privately, control downloads, hide ads and more …

React in a worker, worker, worker...

Sponsored · Your Podcast. Everywhere. Effortlessly. Share. Educate. Inspire. Entertain. You do you. We'll handle the rest. →
Avatar for stefan judis stefan judis
May 23, 2019
Technology
600
2

React in a worker, worker, worker...

Avatar for stefan judis

stefan judis

May 23, 2019

More Decks by stefan judis

See All by stefan judis
Back to boring (part 2)
Avatar for stefan judis stefanjudis
0
370
Playwright can do this?
Avatar for stefan judis stefanjudis
0
240
Things you should know about Frontend Development in 2022
Avatar for stefan judis stefanjudis
0
560
Throw yourself out there for fun and profit
Avatar for stefan judis stefanjudis
0
140
Back to Boring
Avatar for stefan judis stefanjudis
1
530
Wanna scale up? Make sure your CMS is ready for it!
Avatar for stefan judis stefanjudis
0
280
Did we(b development) lose the right direction?
Avatar for stefan judis stefanjudis
6
2.2k
Regular expressions – my secret love
Avatar for stefan judis stefanjudis
1
1.1k
Write a Function
Avatar for stefan judis stefanjudis
0
620

Other Decks in Technology

See All in Technology
「ビジネスがわかるエンジニア」とは何か？
Avatar for ryooob ryooob
0
420
Multi-Agent並列開発を 安全に回すための技術 / Technology for Safely Multi-Agent Parallel Development
Avatar for philomagi tooppoo
0
230
事業会社は今こそSWEを高給で雇ってWebシステムを内製しよう
Avatar for 岡部匡志 masaokb
0
110
AWS Summit Japan 2026の振り返りと2027へ向けて / AWS Summit Japan 2026 Recap and Prospects for 2027
Avatar for 株式会社カミナシ kaminashi
1
130
コミュニティの有益性 ~JAWS Days 2026 での体験を通して~ / The Benefits of a Community ~Through My Experience at JAWS Days 2026~
Avatar for shiro seike seike460
PRO
0
310
CVE-2026-20833_脆弱性対応とAES 化について
Avatar for Jun1214 jukishiya
0
290
Oracle Exadata Database Service on Cloud@Customer X11M (ExaDB-C@C) サービス概要
Avatar for oracle4engineer oracle4engineer
PRO
2
8.2k
product engineering with qa
Avatar for Nealle nealle
0
100
起点・思考・出力で分解する 〜PM業務の自動化設計〜
Avatar for kazu_kichi_67 kazu_kichi_67
2
1.2k
從觀望到全公司落地：AI Agentic Coding 導入實戰 — 流程整合與安全治理
Avatar for Bo-Yi Wu appleboy
0
260
小さいから、全部わかる。— 常駐AI "xangi" のすすめ
Avatar for suguuuuuすぐー sugupoko
0
190
そこにあるから地図ができる～位置を示す"モノ"を愉しむ～ - Interface 2026年6月号GPS特集オフ会 / interface_202606_GPS_offline
Avatar for sakaik sakaik
1
140

Featured

See All Featured
Navigating the Design Leadership Dip - Product Design Week Design Leaders+ Conference 2024
Avatar for Andy Polaine apolaine
1
360
Everyday Curiosity
Avatar for Cassini Nazir cassininazir
0
240
A Soul's Torment
Avatar for Nat Ma seathinner
6
3k
Redefining SEO in the New Era of Traffic Generation
Avatar for Szymon Słowik szymonslowik
1
350
How To Speak Unicorn (iThemes Webinar)
Avatar for Michelle Schulp Hunt marktimemedia
1
490
Leadership Guide Workshop - DevTernity 2021
Avatar for David Neal reverentgeek
1
310
The Curious Case for Waylosing
Avatar for Cassini Nazir cassininazir
1
410
Claude Code どこまでも/ Claude Code Everywhere
Avatar for nwiizo nwiizo
65
56k
ラッコキーワード サービス紹介資料
Avatar for ラッコ株式会社 rakko
1
3.8M
From Legacy to Launchpad: Building Startup-Ready Communities
Avatar for Dug Song dugsong
0
240
Designing for Performance
Avatar for Lara Hogan lara
611
70k
It's Worth the Effort
Avatar for 3n 3n
188
29k

Transcript

  1. @stefanjudis React in a worker, worker, worker, worker...

  2. @stefanjudis www.stefanjudis.com Heyo, I'm Stefan!

  3. Let's talk about CRA (create-react-app)

  4. None

  5. A classical Single Page App

  6. There are problems with typical single page apps...

  7. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  8. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  9. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  10. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  11. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  12. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html> No JavaScript zzzz ...

  13. 13 Million requests for JavaScript will time out. Ian Feather

    (Buzzfeed)

  14. "We don't have any non- JavaScript users". No, all your

    users are non-JS while they're downloading your JS. Jake Archibald (Google)

  15. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  16. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html> The spinner of death

  17. How can we do better?

  18. proxx.app

  19. nextjs.org www.gatsbyjs.org

  20. nextjs.org www.gatsbyjs.org Run the same React code on the server

    and client
  21. None
  22. None
  23. None
  24. None

  25. bundle.js

  26. bundle.js

  27. bundle.js Interactive

  28. Better performance!

  29. Better performance! Faster indexed by Google!

  30. Better performance! Faster indexed by Google! It's the same code

    front to back!

  31. But is it really the same code?

  32. module.exports = global.fetch = global.fetch || (typeof process == 'undefined'

    ? require('unfetch').default || require('unfetch') : function(url, opts) { return require('node-fetch')(url.replace(/^\/\ //g, 'https: //'), opts); });

  33. github.com/developit/unfetch/tree/master/packages/isomorphic-unfetch

  34. What if we serve HTML from an environment with the

    same methods?

  35. The Service Worker worker.js

  36. if ('serviceWorker' in navigator) { navigator.serviceWorker .register('/worker.js') .then(function(registration) {}, function(err)

    {}); }

  37. self.addEventListener('fetch', function(event) { event.respondWith( caches.match(event.request) .then(function(response) { // Cache hit

    - return response if (response) { return response; } return fetch(event.request); } ) ); });

  38. Let's try an experiment?

  39. Crowd Coding...

  40. What did just happen?

  41. None

  42. localhost:8080

  43. localhost:8080

  44. localhost:8080 worker.js

  45. localhost:8080 worker.js

  46. localhost:8080 worker.js Interactive

  47. localhost:8080 worker.js Interactive

  48. localhost:8080 worker.js Interactive

  49. localhost:8080 worker.js Interactive

  50. localhost:8080 worker.js Interactive

  51. localhost:8080 worker.js Interactive

  52. worker.js

  53. worker.js

  54. worker.js

  55. worker.js

  56. Could universal workers be a thing?

  57. Let's create a cloud worker!

  58. www.cloudflare.com/products/cloudflare-workers/

  59. developers.cloudflare.com/workers/reference/

  60. developers.cloudflare.com/workers/reference/

  61. developers.cloudflare.com/workers/reference/

  62. https://dash.cloudflare.com/9dcd7c...

  63. worker.js

  64. worker.js

  65. worker.js

  66. worker.js

  67. worker.js

  68. worker.js

  69. worker.js

  70. worker.js

  71. worker.js worker.js

  72. worker.js worker.js

  73. worker.js worker.js

  74. worker.js

  75. worker.js

  76. worker.js

  77. worker.js

  78. worker.js

  79. Is this the solution to universal JavaScript?

  80. Service worker development is still very tedious

  81. Cache handling is tough

  82. It's worth investigating!

  83. Servers with browser APIs will change how we share code!

  84. react-in-a-worker.netlify.com

  85. www.react-in-a-worker.rocks

  86. github.com/stefanjudis/react-in-a-worker

  87. One last thing...

  88. ... let's serve HTML instead of spinners.

  89. @stefanjudis [email protected] www.stefanjudis.com Thanks.