Blog

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

Series

.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

2 posts found #as-const

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Frontend PART 12

Type Assertions, !, satisfies and as const in TypeScript: What to Tell the Compiler, and When

We look at what a type assertion with as does and doesn't check, the risk behind !, how satisfies from TS 4.9 checks while keeping the narrow type, and readonly literals with as const.

3 Nov 2026 8 min 2

Frontend PART 08

Union and Literal Types in TypeScript: One Value, Several Possibilities

We cover 'either this or that' union types, literal types for fixed sets of values, why literals widen inside objects, a first look at as const, and why unions need narrowing.

3 Nov 2026 8 min 2