· hands on
Understanding Branded Types in TypeScript
Branded types in TypeScript help create unique types to prevent errors. By using a unique marker, type guards and assertion functions help enforce these branded types for added safety.
Tag: type-guards
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Filtering arrays in TypeScript with correct types
This article explains how to filter arrays in TypeScript while maintaining correct types. It demonstrates how to create a type guard to ensure that the filtered array only contains the desired type. It also discusses the downsides of type guards and compares them to assertion functions.