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---
name: typescript-modern
description: Use current TypeScript module, syntax, import, and async patterns.
---
# Modern TypeScript
Use current platform and language features without making code clever.
## Modules
Prefer ESM. Use type-only imports and exports when a symbol is erased at runtime. Keep module
boundaries explicit and avoid circular dependencies.
## Syntax
Use modern syntax when it clarifies intent: optional chaining, nullish coalescing, object
destructuring, `const`, `for...of`, and `async`/`await`. Avoid transpiler-era patterns when the
runtime supports the native feature.
## Platform
Prefer native platform APIs where they are stable and already available in the project runtime. Do
not add a dependency for behavior the platform provides clearly.
## Async
Use `async`/`await` for sequential asynchronous flow and `Promise.all` for independent work. Handle
rejections at boundaries with useful context.
