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Mert Özen's blog posts on software development, backend, frontend, and DevOps.

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.NET Core Web API 36 Angular 31 JavaScript Basics 19 JavaScript Intermediate 18 JavaScript Advanced 16 TypeScript Basics 14 TypeScript Intermediate 14 TypeScript Advanced 12

1 posts found #control-flow-analysis

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Frontend PART 09

Narrowing in TypeScript: Shrinking Unions with Control Flow Analysis

We see how TypeScript narrows unions through control flow analysis: typeof, truthiness, equality, in and instanceof checks, discriminated unions and exhaustive checks with never.

3 Nov 2026 8 min 2