ES2020+ syntax, async plumbing, and event-driven browser code.

Typed application code and maintainable contracts.

Content-focused sites with fast server-rendered output.

Focused interactive islands and component systems.

Composable component trees with hooks and client state.

Progressive component authoring for rapid single-page apps.

Utility-first styling for rapidly composed interfaces.

Nesting, variables, and mixins for maintainable stylesheets.

Build tooling, services, and content pipelines.

Scripting, data wrangling, and service automation.

Typed OO code for larger service and tooling layers.

Concurrent services and small high-performance tools.

Memory-safe systems code and performance-critical paths.

Native modules and performance-sensitive components.

Low-level systems work close to the runtime.

Concise JVM/Android code with modern null safety.

Native Apple-platform code and small CLIs.

Readable scripting and quick automation.

Server-rendered web code and content platforms.

Relational data modeling and application queries.

User-facing regression and accessibility testing.