Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
State of WebAssembly
Search
Sendil Kumar N
February 19, 2020
Technology
82
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
State of WebAssembly
Sendil Kumar N
February 19, 2020
More Decks by Sendil Kumar N
See All by Sendil Kumar N
[Heapcon-2023] Building High Performance Web Applications
sendilkumarn
0
130
Building Reactive Microservices with Kotlin & running on Kubernetes
sendilkumarn
0
240
Building Reactive Microservices with JHipster & K8s
sendilkumarn
0
52
Designing High Performance React Applications
sendilkumarn
1
210
Batching, Suspense, and Server Components
sendilkumarn
0
91
DevNexus_Building_with__Zero_Trust_Architecture_Copy.pdf
sendilkumarn
0
99
Lessons Learnt with Visual Testing and Snapshots
sendilkumarn
0
160
Easy Microservices with K8s & Istio
sendilkumarn
0
120
KHipster - Kotlin Hipster
sendilkumarn
0
280
Other Decks in Technology
See All in Technology
証券システムを10年Scalaで作り続けるということ - 関数型まつり2026
krrrr38
3
800
SRE Lounge Hiroshimaへの招待
grimoh
0
560
DatabricksにおけるMCPソリューション
taka_aki
1
110
AWS Blocks を触ってみた/first-tach-aws-blocks
fossamagna
2
150
プライバシー保護の理論と実践
lycorptech_jp
PRO
1
250
生成AIの活用/high_school2026
okana2ki
0
120
Empower GenAI with Agile - あなたのアジャイルが生成AIのバフになる仕組み
hageyahhoo
1
150
AI Agent SaaS を支える自社仮想化基盤への挑戦と実運用 / ai-agent-saas-virtualization
flatt_security
2
3.4k
Docker Desktop不要の時代が来る? WSL標準の「wslc」で Linuxコンテナを動かしてみた.
ueponx
0
860
AI時代のエンジニアキャリアについて今一度考える
sakamoto_582
2
1.4k
完全自律ロボットを作りたくて、先に開発を自律させた話(ROS Japan UG #63 LT)
rryz09
0
440
DMM.com 購入改善推進チーム におけるCodeRabbitを用いた レビューフロー改善の一例
ysknsid25
2
570
Featured
See All Featured
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
141
35k
Public Speaking Without Barfing On Your Shoes - THAT 2023
reverentgeek
1
460
Future Trends and Review - Lecture 12 - Web Technologies (1019888BNR)
signer
PRO
0
3.6k
KATA
mclloyd
PRO
35
15k
Design of three-dimensional binary manipulators for pick-and-place task avoiding obstacles (IECON2024)
konakalab
0
490
What’s in a name? Adding method to the madness
productmarketing
PRO
24
4.1k
Organizational Design Perspectives: An Ontology of Organizational Design Elements
kimpetersen
PRO
1
760
The Illustrated Guide to Node.js - THAT Conference 2024
reverentgeek
1
410
New Earth Scene 8
popppiees
3
2.4k
RailsConf 2023
tenderlove
30
1.5k
Mozcon NYC 2025: Stop Losing SEO Traffic
samtorres
1
280
The Hidden Cost of Media on the Web [PixelPalooza 2025]
tammyeverts
2
340
Transcript
@sendilkumarn Hoi Nederland !!!
@sendilkumarn Languages are built for a purpose. Choose & Use
them wisely…
The state of WebAssembly Sendil Kumar N
@sendilkumarn Sendil Kumar
@sendilkumarn Hacking on WebAssembly
JavaScript is weird @sendilkumarn
[1, 2] + [3, 4] @sendilkumarn
1, 23, 4 @sendilkumarn [1, 2] + [3, 4]
1, 23, 4 @sendilkumarn [1, 2].toString() + [3, 4].toString() “1,2”
+ “3, 4”
JavaScript is weird* * - sometimes @sendilkumarn
@sendilkumarn JavaScript Execution
@sendilkumarn Load JavaScript
@sendilkumarn a.js AST 1001010010101101010 Execute Profiler Parse Interpret Compile 100101001010
Optimise 1010 GC
@sendilkumarn JavaScript Tuning
@sendilkumarn Css Tuning
JavaScript is awesome @sendilkumarn ~80% ~90% https://2019.stateofjs.com/opinions/
@sendilkumarn JavaScript is easy https://octoverse.github.com/ 6 years in row
@sendilkumarn https://2019.stateofjs.com/opinions/ ~59% ~40% JavaScript is evolving
So what is the problem? @sendilkumarn
@sendilkumarn Types Polymorphism Unpredictable Performance Runtime exceptions
@sendilkumarn Types 66% users interested to use TypeScript https://2019.stateofjs.com/javascript-flavors/
@sendilkumarn Predicatble Performance Types Unpredictable Performance Typed
WebAssembly @sendilkumarn
Yet Another Frontend framework?
@sendilkumarn 00 61 73 6D 01 00 00 00 Native
Code Binary JavaScript Javascript Engine Runtime
@sendilkumarn 00 61 73 6D 01 00 00 00 Native
Code Binary JavaScript Javascript Engine
WebAssembly is not a language @sendilkumarn
@sendilkumarn func add is called Stack get_local $lhs LHS RHS
get_local $rhs i32.add SUM Structured stack machine
@sendilkumarn 00 61 73 6D 01 00 00 00 Size
& Load time efficient
@sendilkumarn What WebAssembly provides?
@sendilkumarn Speed
@sendilkumarn Near Native perf. ~30% faster than JS
@sendilkumarn secure
@sendilkumarn Linear Memory Model
@sendilkumarn Shared Array Buffer
@sendilkumarn Typed
@sendilkumarn i32 i64 f32 f64 00 61 73 6D 01
00 00 00 WebAssembly Binary JavaScript Javascript Engine Binding JS file
@sendilkumarn Boundary Crossing
@sendilkumarn Not always faster
@sendilkumarn How WASM works?
@sendilkumarn WebAssembly Execution
@sendilkumarn Load WebAssembly
@sendilkumarn Decode Compile Execute 00 61 73 6D 00 61
73 6D 00 61 73 6D
@sendilkumarn PARSE COMPILE OPTIMISE EXECUTE GC JavaScript execution DECODE COMPILE
EXECUTE WebAssembly execution
@sendilkumarn PARSE COMPILE OPTIMISE EXECUTE GC JavaScript execution DECODE COMPILE
EXECUTE WebAssembly execution I am faster
@sendilkumarn PARSE COMPILE OPTIMISE EXECUTE GC JavaScript execution DECODE COMPILE
EXECUTE WebAssembly execution Optimised already
@sendilkumarn Streaming compilation
What languages can do wasm? @sendilkumarn
C/C++ @sendilkumarn
@sendilkumarn ./emcc -O3 helloworld.c
Why C/C++? @sendilkumarn Tons of options All batteries included Verbose
Rust @sendilkumarn
@sendilkumarn $ wasm-pack build $ cargo install wasm-pack
Why Rust? @sendilkumarn Inbuilt into the compiler All batteries included
Best tooling support Sometimes bigger binaries
AssemblyScript @sendilkumarn
@sendilkumarn $ asc helloworld.ts -b helloworld.wasm -O3 $ npm i
--save-dev assemblyscript
Why AssemblyScript? @sendilkumarn Closer to JavaScript community Good tooling support
/ options
Go @sendilkumarn
@sendilkumarn $ GOOS=js GOARCH=wasm go build -o out/main.wasm go/main.go
Why Go? @sendilkumarn Easy & Concise TinyGo is awesome Reflections
& Proxies everywhere
@sendilkumarn Future
@sendilkumarn Interface types
@sendilkumarn Single Instruction Multiple Data
@sendilkumarn ♻ Garbage Collection
@sendilkumarn WASI WebAssembly System Interface
JavaScript with WebAssembly together makes web even more awesome &
faster @sendilkumarn
@sendilkumarn Thanks… @sendilkumarn dev.to/sendilkumarn sendilkumarn.com/blog Questions…