Challenge set
TypeScript Fundamentals
Build practical TypeScript foundations through six Challenges covering function types, object models, optional fields, narrowing, unions, and generics.
TypeScript
TypeScriptWork through the collection
Challenges in This Set
- 01
TypeScript
Type a Price Calculator
Add TypeScript parameter and return annotations to a price calculator so strict compilation succeeds while preserving the calculated total.
50XPBeginner - 02
TypeScript
Model a Product Object
Define a TypeScript product object type with required primitive fields so the provided formatter and sample catalog compile safely.
50XPBeginner - 03
TypeScript
Handle Optional Profile Fields
Handle optional TypeScript profile fields with nullish fallbacks so complete and partial profiles produce clear readable summaries.
50XPBeginner - 04
TypeScript
Narrow a Search Result
Use TypeScript union narrowing with typeof to format text and numeric search results safely without weakening the declared types.
100XPIntermediate - 05
TypeScript
Model Deployment Events with TypeScript
Model deployment events with a TypeScript discriminated union so status checks narrow every variant to its required fields safely.
100XPIntermediate - 06
TypeScript
Build a Generic Result Wrapper
Build a generic TypeScript Result type and helper functions that preserve each success value's type while representing failures safely.
200XPAdvanced
