Using TypeScript Using TypeScript In this chapter we will discuss: Overview of TypeScript in Deno Configuring TypeScript in Deno Types and Type Declarations Migrating to/fr...

Union types Overview Stricter Generics Better Type Inference let declarations const declarations Template strings Type Guards Type Aliases const enum (completely inline...

Type parameters as constraints Example Control flow analysis errors Unreachable code Example Unused labels Example Implicit returns Example Case clause fall-throughs Examp...

Dynamic Import Expressions String Enums Improved inference for generics Return types as inference targets Type parameter inference from contextual types Stricter checking for g...

Strict function types Example Note Cache tagged template objects in modules Example Localized diagnostics on the command line Example Suppress errors in .ts files using ’// ...

Speed improvements Type-checking speed-ups --incremental improvements The Omit helper type Improved excess property checks in union types The --allowUmdGlobalAccess flag S...

Stricter Generators More Accurate Array Spread Improved UX Around Promises Better Unicode Support for Identifiers import.meta Support in SystemJS get and set Accessors Are ...

Improvements in Inference and Promise.all What About the awaited Type? Speed Improvements // @ts-expect-error Comments ts-ignore or ts-expect-error ? Uncalled Function Che...

Using TypeScript Using TypeScript In this chapter we will discuss: Overview of TypeScript in Deno Configuring TypeScript in Deno Types and Type Declarations Migrating to/f...

Using TypeScript Using TypeScript ℹ️ This section has been moved to Using TypeScript Chapter .