https://codingfox.dev/tags/discriminated-unions/ Recent content in Discriminated-Unions on Coding Fox Hugo en-us Tue, 14 Jul 2026 00:00:00 +0200 https://codingfox.dev/post/typescript-conditional-types/ Tue, 14 Jul 2026 00:00:00 +0200 https://codingfox.dev/post/typescript-conditional-types/ <p>TypeScript is often introduced as a way to add static types to JavaScript. But its real power becomes visible when we stop describing only the shape of data and start modeling relationships between data.</p> <p>A common challenge in software development is that some values are not independent. One value determines which other values are valid.</p> <p>TypeScript can help us express these relationships directly in the type system — and prevent invalid states before our code ever runs.</p>