How Intersection Types Replace Error Handling
Learn how to replace runtime validation with TypeScript intersection types for compile-time safety and cleaner code.
Tag: typescript
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- · hands on
Never Review a Dependency Update Again
Set up a GitHub Actions workflow that automatically approves and merges Dependabot PRs when CI passes. Stop manually clicking merge on dependency updates.
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Never Miss a Switch Case Again
Learn how to make TypeScript catch missing switch cases at compile time using the exhaustive switch pattern with the never type.
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Why You Should Use Locators Instead of Text in Your Tests
Learn why using semantic locators like data attributes and ARIA roles makes your tests more robust than text-based selectors. Discover best practices for writing frontend tests in TypeScript with Playwright.
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Stop Using TypeScript's Exclamation Mark
The non-null assertion operator (!) tells TypeScript to trust you when you say a value isn't null or undefined. But this trust comes at a cost: runtime crashes that TypeScript could have prevented. Learn why this operator undermines type safety and what to use instead.