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Level 1 · Beginner Programming Languages

TypeScript Fundamentals TypeScript Fundamentals

Verify your foundational TypeScript knowledge: the type system, interfaces, enums, union types, functions, classes, utility types, type narrowing, and compiler configuration.

Skills Tested
  • Type System & Inference
  • Interfaces & Type Aliases
  • Enums & Union Types
  • Functions & Overloads
  • Classes & Access Modifiers
  • Utility Types
  • Type Narrowing
  • Compiler & tsconfig
  • Advanced Types
Assessment Details
20
Questions
78%
To Pass
30 min
Time Limit
Pass Rate

  • Questions are drawn randomly from the question pool each attempt
  • Answers cannot be reviewed after submission
  • Escalating cooldown between attempts: 8h, 24h, 72h, then 1 week
  • Certificates include a shareable verification token
  • Open Badges 2.0 compliant. Add to LinkedIn and digital wallets