JobCannon
рд╕рд░реНрд╡ рдХреМрд╢рд▓реНрдпреЗ

WebAssembly

Near-native performance in the browser and beyond

тмв рд╢реНрд░реЗрдгреА 3рддрд╛рдВрддреНрд░рд┐рдХ
+$25k-
рдкрдЧрд╛рд░рд╛рд╡рд░реАрд▓ рдкрд░рд┐рдгрд╛рдо
8 рдорд╣рд┐рдиреЗ
рд╢рд┐рдХрдгреНрдпрд╛рд╕ рд▓рд╛рдЧрдгрд╛рд░рд╛ рд╡реЗрд│
рдХрдареАрдг
рдХрд╛рдард┐рдгреНрдп
тАФ
рдХрд░рд┐рдЕрд░реНрд╕
рдПрдХрд╛ рджреГрд╖реНрдЯрд┐рдХреНрд╖реЗрдкрд╛рдд

WebAssembly is a high-value niche skill enabling compute-intensive browser applications. Compile Rust, C++, or Go to Wasm for 10-50x speedup on math/graphics. Used by Figma, AutoCAD, Google Earth. Senior roles command $150-250k. Learning curve: 6-9 months for intermediate competency; advanced component models require systems programming background.

WebAssembly рдореНрд╣рдгрдЬреЗ рдХрд╛рдп

WebAssembly (Wasm) is a binary instruction format that runs at near-native speed in web browsers and increasingly on servers via WASI. It enables running C++, Rust, Go, and other languages in the browser for compute-intensive tasks like video editing, CAD, games, and data processing. Beyond the browser, Wasm is emerging as a universal runtime for serverless functions, plugin systems, and edge computing. Companies like Figma, Google Earth, and AutoCAD use Wasm for performance-critical web features.

ЁЯФз рд╕рд╛рдзрдиреЗ рдЖрдгрд┐ рдкрд░рд┐рд╕рдВрд╕реНрдерд╛
RustAssemblyScriptEmscriptenwasm-bindgenwasm-packWasmtimeWASIWAMRComponent ModelWasmer

ЁЯУЛ рд╕реБрд░реВ рдХрд░рдгреНрдпрд╛рдкреВрд░реНрд╡реА

Rust ProgrammingFrontend DevelopmentProgramming Python Javascript

ЁЯТ░ рдкреНрд░рджреЗрд╢рд╛рдиреБрд╕рд╛рд░ рдкрдЧрд╛рд░

рдкреНрд░рджреЗрд╢рдЬреНрдпреБрдирд┐рдпрд░рдордзреНрдпрдорд╕реАрдирд┐рдпрд░
USA$95k$140k$210k
UK┬г70k┬г105k┬г160k
EUтВм60kтВм90kтВм140k
CANADAC$85kC$125kC$190k

ЁЯОУ рдкреНрд░рдорд╛рдгрдкрддреНрд░реЗ

Wasm Workshop by FastlyMozilla WebAssembly CourseWASI (WebAssembly System Interface) Spec

тЪЦ рдпрд╛рдВрдЪреНрдпрд╛рд╢реА рддреБрд▓рдирд╛ рдХрд░рд╛

Rust ProgrammingFrontend DevelopmentWeb Performance

тЭУ FAQ

Is WebAssembly the same as JavaScript?
No. WebAssembly is a binary format that runs at near-native speed. JavaScript is a text-based language that runs in a browser VM. Wasm and JS work together, use Wasm for CPU-bound tasks and JS for DOM manipulation.
Do I need to know Rust to use WebAssembly?
Not required, but recommended. Rust has the best Wasm tooling (wasm-pack, wasm-bindgen). You can also compile C++, Go, or AssemblyScript to Wasm, but Rust has the fewest pain points.
When should I use WebAssembly instead of JavaScript?
Use Wasm for compute-intensive, CPU-bound tasks: image/video processing, 3D rendering, physics simulations, cryptography. Avoid Wasm for simple DOM operations, HTTP requests, or business logic, JavaScript is faster for these.
What's WASI and why does it matter?
WASI (WebAssembly System Interface) brings Wasm outside the browser to servers, edge computing, and IoT. Write once in Rust, deploy to Cloudflare Workers, AWS Lambda, or your edge network. WASI Preview 2 (2025) enables file I/O, sockets, and multi-threading.
How large are Wasm binaries?
Typically 100KB-5MB depending on dependencies. Optimize with wasm-opt (part of Binaryen). A minimal Rust Wasm module is ~3KB; a full ML model can be 50MB. Size matters for web, ship only what you need.
Can WebAssembly call JavaScript functions?
Yes, via wasm-bindgen. You can import JS functions into Wasm and export Wasm functions to JS. The JS-Wasm boundary has overhead (~1-10 microseconds per call), so batch calls or use memory buffers to minimize crossing.
Is WebAssembly secure?
Wasm modules run in a sandboxed environment with no access to the host OS. Security depends on the runtime (browser, Wasmtime, etc.). Always fetch Wasm from trusted sources; a malicious Wasm module inside a sandbox cannot compromise your system.

рд╣реЗ рдХреМрд╢рд▓реНрдп рддреБрдордЪреНрдпрд╛рд╕рд╛рдареА рдпреЛрдЧреНрдп рдЖрд╣реЗ рдХрд╛, рдпрд╛рдЪреА рдЦрд╛рддреНрд░реА рдирд╛рд╣реА?

рдХрд░рд┐рдЕрд░ рдореЕрдЪ рдХрд░реВрди рдкрд╛рд╣рд╛ тАФ рдЖрдореНрд╣реА рдпреЛрдЧреНрдп рдорд╛рд░реНрдЧ рд╕реБрдЪрд╡реВ.

рдорд╛рдЭреНрдпрд╛рд╕рд╛рдареА рд╕рд░реНрд╡реЛрддреНрддрдо рдХреМрд╢рд▓реНрдпреЗ рд╢реЛрдзрд╛ тЖТ

рддреБрдордЪрд╛ рдЖрджрд░реНрд╢ рдХрд░рд┐рдЕрд░ рдорд╛рд░реНрдЧ рд╢реЛрдзрд╛

реи,релреирез рдХрд░рд┐рдЕрд░рдордзреНрдпреЗ рдХреМрд╢рд▓реНрдпрд╛рдВрд╡рд░ рдЖрдзрд╛рд░рд┐рдд рдЬреБрд│рдгреА. рдореЛрдлрдд, ~3 рдорд┐рдирд┐рдЯреЗ.

рдХрд░рд┐рдЕрд░ рдореЕрдЪ рдХрд░реВрди рдкрд╛рд╣рд╛ тАФ рдореЛрдлрдд тЖТ