Post

TypeScript
@typescriptlang.org

What's new in the RC since the beta? A couple of things, but worth calling out are - A rebuilt `--watch` mode - Stability improvements across the board - New ported editor features - Strategies for using less memory in editors

TypeScript
@typescriptlang.org

The rebuilt `--watch` mode is powered by a Go port of Parcel's watcher, giving TypeScript 7 efficient, stable cross-platform file watching. Expect much less CPU usage on idle.

TypeScript
@typescriptlang.org

Editor support has come a long way since we first debuted: auto-imports, expandable hovers, inlay hints, code lenses, JSX linked editing, semantic highlighting, sort imports, remove unused imports, and more are now available.

TypeScript
@typescriptlang.org

Not yet mentioned in the blog post: TypeScript 7.0 will release unused type-checkers in the editor after enough idle time. For bigger projects, this should help reduce memory usage after peaking.

NiftyMitch
@niftymitch.bsky.social

For those catching up links to tutorials and documentation, please. One should always be able to RTFM. I assume the 'fine' manuals are written using TypeScript 🥸

Alexey Chechet
@gissen-dev.bsky.social

the underrated detail: this isn't a from-scratch rewrite, it's a faithful port of the existing checker to go. so you get ~10x with the same semantics, not a fresh batch of edge cases. that's the hard part they nailed and the friction's all tooling/config, which makes it easy to plan around