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Advanced TypeScript in 21 days

Template literal types, variance, branded types, the compiler API, and monorepo TypeScript setups.

  • Daily plan, 45-60 min a day
  • 6 lessons + 18 exercises
  • AI tutor included
duration21-day sprint
Topics6 total
Exercises18 total
levelAdvanced
  • No prior coding experience required
  • Practice tasks every day
  • Build impressive portfolio project

What you will learn

A powered by mentors Advanced plan with structured subtopics, quizzes, and practice tasks.

01Challenge

Template literal types

Build string manipulation types and type-safe event systems.

02Challenge

Variance: covariance and contravariance

Understand how TypeScript handles type compatibility in generics.

03Challenge

Branded and opaque types

Prevent misuse with branded types and nominal typing patterns.

04Challenge

TypeScript compiler API

Parse and transform TypeScript AST with the compiler API.

05Challenge

Declaration merging and module augmentation

Extend third-party types and merge interfaces across modules.

06Challenge

Monorepo TypeScript setup

Configure project references, shared tsconfigs, and path aliases.

See the quiz + practice flow

Three answered questions and a filled code task so you know exactly what to expect.

Quiz preview

2/3 correct

1. How long is the TypeScript plan?

Correct
21-day sprint
5-day sprint
7-day sprint
10-day sprint

2. What level is this TypeScript plan?

Incorrect
Beginner
Intermediate
Advanced
Expert

3. Which of these appears in the TypeScript outline?

Correct
Template literal types
TypeScript workflow playbook
TypeScript best-practice checklist
TypeScript case study

Code practice preview

Submitted

Format a lesson title

Build a helper that formats a lesson label with a padded index and title.

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