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TypeScript creator Anders Hejlsberg puts TypeScript 7 through its paces, compiling the 2.3M-line Visual Studio Code codebase in under five seconds, and breaking down how the new 10x faster Go-powered compiler and language service scales with shared-memory concurrency.

Microsoft Developer

531,284 subscribers

44,413 Aufrufe • vor 3 Monaten •via X (Twitter)

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23 Kommentare

Profilbild von Microsoft Developer

Microsoft Developervor 3 Monaten

Read more about our release of TypeScript 7

Profilbild von Simon Holm

Simon Holmvor 3 Monaten

@ahejlsberg @code Anders Hejlsberg comes across as remarkably calm and thoughtful. Beyond being Danish, he's also one of the true legends of software engineering.

Profilbild von jeffnyalik

jeffnyalikvor 3 Monaten

@ahejlsberg @code Wonder why he didn't pick C#

Profilbild von Dmytro Petruk

Dmytro Petrukvor 3 Monaten

@ahejlsberg @code It is a savior on the large codebases! 👏

Profilbild von Vlad Sazonau

Vlad Sazonauvor 3 Monaten

@drosenwasser @ahejlsberg @code Nice!

Profilbild von Mirolim Mirzakhmedov

Mirolim Mirzakhmedovvor 3 Monaten

We talk a lot about the developer time saved by TS7. I’m equally impressed by the compute saved. TypeScript runs at enormous global scale editors, builds, CI, agents. A 4x single-core efficiency gain, before even counting parallelism, means a lot less compute for the same work. Less compute means less energy demand. At this scale, compiler engineering becomes sustainability engineering. Congrats to the team! This is a real contribution toward a more sustainable future. 👏

Profilbild von Andrew

Andrewvor 3 Monaten

@ahejlsberg @code What can I say?) 5 seconds is so cool!

Profilbild von Khushal Singh

Khushal Singhvor 3 Monaten

@ahejlsberg @code so nice to see a real engineering project in this vibe coding era

Profilbild von Dmitry

Dmitryvor 3 Monaten

@ahejlsberg @code Most tooling can't use it because 7.0 not provide programmatic API. When it will be released?

Profilbild von sophia ☁️

sophia ☁️vor 3 Monaten

@ahejlsberg @code Great point!

Profilbild von Raphael Cangucu

Raphael Cangucuvor 3 Monaten

@ahejlsberg @code Thanks, that's why I am using go and not typescript on server side. =P

Profilbild von ⋆˚࿔ sof ᯓ★

⋆˚࿔ sof ᯓ★vor 3 Monaten

@ahejlsberg @code Totally agree with this

Profilbild von jeffnyalik

jeffnyalikvor 3 Monaten

@ahejlsberg @code The TypeScript compiler is now primarily written in Go.

Profilbild von Rohan Arun

Rohan Arunvor 3 Monaten

Hey Super, build a TypeScript 7 Concurrent Compiler Visualizer & Multi-Core Throughput Simulator that visually models and computes how Anders Hejlsberg's Go-powered TypeScript 7 compiler architecture achieves 10x compilation speedup on massive codebases through shared-memory concurrency. The tool provides an interactive first-viewport experience where users select codebase scale (ranging from 500K lines up to 5M lines, defaulting to VS Code's 2.3M lines), choose worker thread counts (1 to 64 CPU cores), and compare architecture models: TS 7 Go-Powered Shared Memory (zero-copy lock-free symbol lookup across goroutines) versus TS 6 Node.js Single-Threaded / IPC Worker Copying. The interactive main engine renders a dynamic D3 multi-threaded Gantt pipeline showing parallel AST parsing, lock-free symbol table indexing, constraint solving, and codegen emit phases per worker lane, alongside an interactive module dependency graph highlighting concurrent partition boundaries. Key features include real-time throughput calculations (Lines/sec, Total Wall Clock Time, Memory Allocation Footprint, CPU Core Efficiency %), an interactive lock contention and cache-hit slider set, preset scenarios (VS Code 2.3M Lines, Massive Monorepo 5M Lines, Mid-Sized App 800K Lines), side-by-side performance comparison breakdown tables, and a downloadable JSON/SVG benchmark report. Visual styling uses a high-tech modern IDE dark theme with glowing neon worker thread indicators, crisp visual progress metrics, and precise D3 thread swimlanes. All calculation logic is fully client-side and deterministic. Ensure full mobile and desktop responsiveness with bounded layout grids, touch-friendly thread inspection, zero external server dependencies, and full accessibility compliance. The canonical slug for this app is ts7-concurrent-compiler-39.

Profilbild von Chawan Prash

Chawan Prashvor 3 Monaten

@ahejlsberg @code Wow what an insignificant achievement

Profilbild von armi

armivor 3 Monaten

@ahejlsberg @code VB and FoxPro send greetings to TypeScript.

Profilbild von iTokens.io ⚡️ AI API

iTokens.io ⚡️ AI APIvor 3 Monaten

@ahejlsberg @code 2.3M lines in under five seconds is impressive. As coding workflows keep evolving, gives developers the flexibility to switch between the latest models through one API and find the right fit based on coding needs and cost.

Profilbild von sofia 🦋

sofia 🦋vor 3 Monaten

@ahejlsberg @code Well said!Facts!

Profilbild von sophs p

sophs pvor 3 Monaten

@ahejlsberg @code 5s for 2.3m lines is actually insane

Profilbild von Abbas Azmi

Abbas Azmivor 3 Monaten

@ahejlsberg @code Absolutely game-changing! 🤯 Compiling 2.3M lines in under 5 seconds will save developers countless hours. Moving to a Go-powered architecture with shared-memory concurrency is a massive win for productivity. Take a bow @ahejlsberg! 🔥 #TypeScript #TechNews

Profilbild von River

Rivervor 3 Monaten

@ahejlsberg @code now rewrite it in zig with codex

Profilbild von Colin Richardson

Colin Richardsonvor 3 Monaten

@ahejlsberg @code Does he show it working on Typescript Playground?

Profilbild von 1024.com

1024.comvor 3 Monaten

@ahejlsberg @code That’s cool

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