typescript-strict

Enforce exhaustive switch statements in TypeScript by using assertNever guards within default cases to catch unhandled discriminant variants at compile time, preventing runtime surprises during refactoring.

Branded types in TypeScript create safer type boundaries by tagging primitive values to enforce invariants, which should be used when distinguishing identifiers or ensuring only validated data passes into functions.

Handle undefined values from noUncheckedIndexedAccess by explicitly checking for undefined when retrieving values from arrays or objects, requiring your code to safely manage potentially missing elements.

Yes, this strict TypeScript pattern requires specific compiler options including strict: true, noUncheckedIndexedAccess, noImplicitReturns, and exactOptionalPropertyTypes to validate per-file patterns effectively.

Structure data models with discriminated unions in TypeScript by tagging variants with a shared literal property, enabling robust explicit shape handling and exhaustive type checking across APIs.

Yes, you can use strict TypeScript patterns to validate code during CI by implementing checks that ensure tsc passes, applying pattern validation across exported APIs and internal utilities.