Technical · Structured skill path
TypeScript Coding Assessment & Practice
Typed problem solving from TypeScript foundations through advanced generics and expert challenges.
20 progressive levels · Beginner → advanced · 200 published questions
Start with the FREE entry level. PRO levels remain gated and unlock in sequence after sign-in.
Level 1
TypeScript Coding Foundations
TypeScript Coding Foundations Assessment
beginner · 10 published questions
Level 2
Types & Variables
Types & Variables Assessment
beginner · 10 published questions
Level 3
Functions & Type Annotations
Functions & Type Annotations Assessment
beginner · 10 published questions
Level 4
Arrays & Tuples
Arrays & Tuples Assessment
beginner · 10 published questions
Level 5
Objects & Interfaces
Objects & Interfaces Assessment
beginner · 10 published questions
Level 6
Unions & Narrowing
Unions & Narrowing Assessment
beginner · 10 published questions
Level 7
Generics Foundations
Generics Foundations Assessment
intermediate · 10 published questions
Level 8
Typed Collections
Typed Collections Assessment
intermediate · 10 published questions
Level 9
String & Array Problems
String & Array Problems Assessment
intermediate · 10 published questions
Level 10
Data Transformation
Data Transformation Assessment
intermediate · 10 published questions
Level 11
Typed Functions
Typed Functions Assessment
intermediate · 10 published questions
Level 12
Generic Problem Solving
Generic Problem Solving Assessment
intermediate · 10 published questions
Level 13
Utility Types
Utility Types Assessment
intermediate · 10 published questions
Level 14
Advanced Type Modeling
Advanced Type Modeling Assessment
intermediate · 10 published questions
Level 15
Typed Algorithms
Typed Algorithms Assessment
advanced · 10 published questions
Level 16
Data Structure Problems
Data Structure Problems Assessment
advanced · 10 published questions
Level 17
API/Data Modeling Challenges
API/Data Modeling Challenges Assessment
advanced · 10 published questions
Level 18
Advanced Generics
Advanced Generics Assessment
advanced · 10 published questions
Level 19
Interview Coding Problems
Interview Coding Problems Assessment
advanced · 10 published questions
Level 20
TypeScript Coding Expert Challenge
TypeScript Coding Expert Challenge Assessment
advanced · 10 published questions