TypeScript Masterclass icon TypeScript Masterclass

39 lessons 4 hours
Star Rating Star Rating Star Rating Star Rating Star Rating
4.9/5 (1782 ratings)

Ready to reach beyond the basics? Level-up your TypeScript flare with Generics, Enums, Overloads, Type Guards and Queries, Mapped Types, Declaration Files, and more. We’ll also equip you with a comprehensive understanding of the Compiler Options, so you can use your new-found expertise every time you build a new TypeScript app.

Online Course with Todd Motto

Author: Todd Motto Google Developer expert Google Developer Expert

Play Angular featured video typeof and Type Guards 11:15

  • Job-ready training
  • Skill up your team
  • Expert knowledge
  • Certificate of completion
  • Stream or download
  • Best practices included
  • Closed Captions (subtitles)
  • 30-day guarantee
  • Slack community access

Overview, setup and source files

1 lessons

  • Setup instructions


Understanding and Typing "this"

4 lessons

  • A “this” Keyword Primer

  • Exploring “this” with .call, .apply and .bind

  • Arrow Functions and Lexical Scope

  • Typing “this” and “noImplicitThis”


Type Queries

3 lessons

  • “typeof” Type Queries

  • “keyof” Index Type Queries

  • “keyof”, Generics and Lookup Types


Mapped Types

5 lessons

  • “Readonly” Mapped Type

  • “Partial” Mapped Type

  • “Required” Mapped Type, +/- Modifiers

  • “Pick” Mapped Type

  • “Record” Mapped Type


Exploring Type Guards

4 lessons

  • “typeof” and Type Guards

  • “instanceof” and Type Guards

  • User Defined Type Guards

  • Literal Type Guards and “in” Operator


Advanced Types and Practices

4 lessons

  • Intersection Types

  • Discriminated (Tagged) Unions

  • Interfaces vs Type Aliases

  • Interfaces vs Classes


Generics and Overloads

2 lessons

  • Function Generics

  • Function Overloads


Exploring Enums

2 lessons

  • Numeric Enums and Reverse Mappings

  • String Enums and Inlining Members


Declaration Files

4 lessons

  • DefinitelyTyped and @types

  • Writing Declaration Files

  • Augmenting Modules with Declarations

  • Emitting Declaration Files


tsconfig and Compiler Options

10 lessons

  • Include, Exclude and Files properties

  • Configuration Inheritance with Extends

  • Output Locations, Tweaks and Emitting On Error

  • Emitting Source Maps

  • Transpiling and Experimental Features

  • Understanding “lib” and ES libraries

  • Strict Flags for Enhanced Safety

  • CLI Output Tweaks

  • Enforcing Code Quality

  • Performance Bundling and tslib


Or get the complete bundle...

Everything you need to start mastering today

TypeScript Kickstart Bundle

Courses included:

8 hours 83 lessons

Perfect for Teams

Skill up your development team quickly. It's easy to get your team onboard with us! Get special team discounts, progress reports, team upgrades and much more.

100% money back guarantee

We’re proud to be empowering thousands of developers, beginners and experienced pros. If you’re anything less than 110% satisfied, let us know within 30 days and we’ll refund you in full.

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I can't think of any Angular course training that I trust to be more accurate, and promote the best practices, than Ultimate Courses.

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Jules Kremer

Angular Developer Relations, Google

San Francisco, California

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Ultimate Courses is fantastic. My engineering team is building apps better than ever. In-depth training that pushes new standards.

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Jordan Epps

Director of Engineering, Revolution Prep

Santa Monica, California

I've spent $1,500 dollars in the last 6 months trying to learn what you gave me in a single course.

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Chris Milford

Senior Engineer

The clearest and best produced courses on the market! Clear, concise, packed with best practices.

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Kyle Hebert

JavaScript Developer

An immense job breaking things down into simple concepts. I would strongly recommend Ultimate Courses.

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Houssein Djirdeh

JavaScript Engineer

Self-paced, comprehensive, real examples from beginning to end, clear and concisely brilliant.

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Jacob Cheriathundam

Development Architect

Todd's Angular courses are one of the best online trainings that can be found. A+.

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John Oswalt

Technology Expert

I’ve achieved the structure and organisation that is difficult to get on your own. Excellent.

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Sergio Sorrentino

JavaScript Developer

The courses are incredible. You've opened the door for me to build real Angular apps.

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Juan Henriquez

Full Stack Engineer

I've learned and understood so much in such a short amount of time, it's unreal!

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Christian Eckenrode

Senior Engineer

A fast track to becoming a super solid Angular developer. Detailed, easy to understand, brilliant.

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Mag Leahy

Angular Developer

This course is the best resource for learning Angular. The Angular Pro course is incredible.

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Victor Hazbun


Fantastic courses explained incredibly well. Very easy to follow and understand concepts. 10/10.

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Nicolas Telfer


Landed my first job after taking these courses, not sure I'd have made it otherwise.

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Mateusz Sapielak

Systems Developer

A must have for anyone wanting to become an Angular developer. I learned incredible amounts!

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Mohammad Aljaber

Solutions Architect

You've helped me grasp architecture of Angular apps, and the way it should really be done.

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Ritik Rishu

Senior Engineer

Todd condenses all his hard earned knowledge into a time-saving learning process.

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Sharon DiOrio

Lead UI Engineer

The best place to get started with Angular, and go straight to the advanced material.

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Zhentain Wan

Javascript Developer

Todd's in depth knowledge of Angular was fantastic, and the TypeScript explanations are superb.

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Hung Bui

Senior Front-End Developer

Extremely helpful in breaking down concepts into something beginners can understand.

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Dustin Downs

JavaScript Developer

Goodbye books and lectures, hello Ultimate Courses. Intuitive, enlightening, and refreshing.

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Chris Cooley

Senior Engineer

The best resource for anyone wanting to get started with Angular, and go way beyond.

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Anish Benjamin

JavaScript Developer

The content has been well thought out, everything fits together perfectly.

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Pranava Balugari

JavaScript Developer

Everything you could to learn for Angular. The courses ask "why?", and responds with the answers!

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Ryan Woodcox

JavaScript Developer

I've come up to speed immediately. I was lost and confused before this course, a brilliant job.

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Joe Kahl

Senior Engineer

I attempted other courses before these, and Ultimate Courses is way ahead and incomparable.

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Fabrizio Masini

JavaScript Developer

Hands down the best courses available. Daunting concepts aren't scary anymore, they're a breeze.

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Vatsal Pande

Full-Stack Engineer

Ultimate Courses is a fantastic way for you and your team to start writing quality code.

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Nate Murray

Author of ng-book

Very few break down concepts in such a digestable way. Full of vital real-world techniques.

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Chris Sevilleja

Co-founder, Scotch.io

Ultimate Courses gives you an edge. Bursts of knowledge that really step up your game.

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Simon Dufour

JavaScript Developer

Crystal clear concepts, meticulously designed examples and projects. Fantastically valuable.

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Yiling Lu

Senior Developer

The best Angular instructors out there with unrivalled knowledge. First-class Angular courses.

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Sebastien Pelletier

Technical Team Lead

The essentials of architecture, combined with organisation and advanced tricks.

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Johan Chouquet


If you want to finally understand Angular and TypeScript, you're in the right place.

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Ryan Chenkie

Product Owner

The Angular courses are the best you'll find. They've taken our skills to the next level.

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Ben Brown

Lead Engineer

Absolutely love these courses, I've built my first proper app. Recommended to all.

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Simon Lewis

JavaScript Engineer

The real ultimate guide to Angular. Thank you for all your contributions to the community.

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Sherry List


The Angular courses have been indispensable for me getting things done, the right way.

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Stephen Smith


Hands down best start to finish NGRX course available. 10/10.

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Alexander Torres

IT Specialist

The first course I've ever watch to the end. I've immediately grasped NGRX Store and Effects!

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Ben Dalton

Front-End Engineer

This course is incredible and laid everything out for me in a few hours. I've fallen in love with NGRX!

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Jan van Braeckel

Full-Stack Developer

There's no material available like this online all in one place, fantastic.

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Dick Swart

Senior Developer