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

How JavaScript Works

Avatar for arunoda arunoda
November 18, 2015
Programming
82
1

How JavaScript Works

A brief introduction to how JavaScript works internally.

Avatar for arunoda

arunoda

November 18, 2015

More Decks by arunoda

See All by arunoda
Meteor & Container (by Justin from MDG)
Avatar for arunoda arunoda
0
120
Tour De Docker - Meteorhacks Show 2015 May
Avatar for arunoda arunoda
1
160
Performance Optimization Tips for Meteor
Avatar for arunoda arunoda
0
310
Introduction to Flow - UI Architecture for Meteor
Avatar for arunoda arunoda
1
220
Scaling a Meteor Cluster
Avatar for arunoda arunoda
0
260
Microservices and Meteor
Avatar for arunoda arunoda
0
900
Introduction to Meteor
Avatar for arunoda arunoda
1
100
How to write CPU optimized Meteor apps
Avatar for arunoda arunoda
3
97
Newer way to notify customer about features
Avatar for arunoda arunoda
1
76

Other Decks in Programming

See All in Programming
生成AI時代にこそ効くGo | Why Go Works in the Age of Generative AI
Avatar for mom0tomo mom0tomo
8
3.3k
Oxlintのカスタムルールの現況
Avatar for syumai syumai
6
1.2k
SREは、MCPとSRE Agentをこう使え！
Avatar for kazumax55 kazumax55
0
120
任せる範囲はこう広がった / How the Scope of AI Delegation Has Expanded
Avatar for nrs nrslib
0
140
A2UI という光を覗いてみる
Avatar for SatohJohn satohjohn
1
160
ECSアプリログをFireLensでコスト削減しようとしたけど諦めた話 in Fargate×Node.js
Avatar for アキキー | Akihisa Ikeda akihisaikeda
2
4.2k
Spring Security 実践 ─ GraphQL APIで実務に役立つ 認証・認可 を学ぶ
Avatar for Wagyu wagyu
0
260
Datadog LLM Observabilityで実現する 安全なLLM Usage 管理
Avatar for Brown 3150
0
120
Semantic Version 単位で戦略を柔軟に変えて、パッケージアップデートを自動化する
Avatar for daitasu daitasu
1
310
技術的負債解消で開発者の未来を開く- AIの力でコード刷新
Avatar for Kato Ryo kmd2kmd
0
120
代数的データ型って何が嬉しいの？ #frontend_phpcon_do
Avatar for Takuma Kajikawa kajitack
8
3.8k
LLM本来の能力を解き放つサンドボックス技術とAI民主化への適用
Avatar for Yuku Kotani yukukotani
3
4.6k

Featured

See All Featured
Claude Code のすすめ
Avatar for schroneko schroneko
67
230k
Designing for humans not robots
Avatar for Tammie Lister tammielis
254
26k
The Power of CSS Pseudo Elements
Avatar for Geoffrey Crofte geoffreycrofte
82
6.3k
Ruling the World: When Life Gets Gamed
Avatar for Sebastian Deterding codingconduct
0
260
Producing Creativity
Avatar for Steve Smith orderedlist
PRO
348
40k
Why Your Marketing Sucks and What You Can Do About It - Sophie Logan
Avatar for Sophie Logan marketingsoph
0
170
Visual Storytelling: How to be a Superhuman Communicator
Avatar for David Neal reverentgeek
2
570
The AI Revolution Will Not Be Monopolized: How open-source beats economies of scale, even for LLMs
Avatar for Ines Montani inesmontani
PRO
3
3.5k
brightonSEO & MeasureFest 2025 - Christian Goodrich - Winning strategies for Black Friday CRO & PPC
Avatar for Christian Goodrich cargoodrich
3
740
Navigating the Design Leadership Dip - Product Design Week Design Leaders+ Conference 2024
Avatar for Andy Polaine apolaine
1
360
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
Avatar for panda_program panda_program
123
22k
Un-Boring Meetings
Avatar for Sebastian Deterding codingconduct
0
320

Transcript

  1. How JavaScript Works @arunoda

  2. Is It Fast?

  3. For Server Side Apps, Really?

  4. JavaScript VMs

  5. V8
 Spider Monkey
 Chakra Nitro

  6. V8 - The King

  7. For Chrome by Google Used in Node.js, MongoDB Cool Features

  8. JavaScript Execution

  9. None

  10. JavaScript is Single Threaded

  11. huh!

  12. Eventloop

  13. Eventloop

  14. Eventloop

  15. Non Blocking I/O

  16. Non Blocking IO OS Level I/O Queues

  17. Java - nio Python - asyncio Non Blocking I/O isn’t

    Something New

  18. This is the only way! But in JS

  19. None
  20. None

  21. Node.js

  22. Is Node.js Fast?

  23. Pure JavaScript is Super Fast

  24. Non Blocking IO is fast, efficient

  25. JS - C++ communication is slow here

  26. Don’t block Eventloop avoid CPU intensive tasks

  27. Still, Why Node.js?

  28. CPU Intensive Kernel Level Stuff

  29. Highly Concurrent Easy to write

  30. Thank You! @arunoda