New frontend developers
Strengthen your TypeScript foundation with clear visual explanations and practical context.
TypeScript
Earn ₹5–22 LPAwith TypeScript skills
Go from JavaScript to type-safe engineer with 120 animated, voice-explained videos: types, generics, Zod, typed APIs, React, testing and interviews.
₹299₹1,99985% off
Checking your library...
3,700+ learners enrolled
One-time payment. 3 months access to every video in this course.
4.93,700+ ratings
All LevelSkill level
120 videos24+ hours
CertificateShareable on finish
Course preview
See how the lessons work before you buy
Watch free demo lectures from the course to see the visual, voice-explained teaching before enrolling.
Free demo lectures8 videos
Career outcomes
Build skills that open doors to real roles
Use your TypeScript knowledge in portfolio projects, interviews, and practical work for roles such as these.
01
TypeScript Developer
Entry level02
Frontend Engineer
Mid level03
Full-Stack Engineer
Senior trackAbout this TypeScript course
This TypeScript course turns important concepts into clear visual explanations you can learn in short sessions and revisit whenever you need a refresher.
Work through 120 videos at your own pace, apply each idea through structured examples and assignments, track your progress, and earn a certificate when you finish.
Skills you will learn
Types, unions, narrowing, and generics
Build practical understanding through visual explanations, guided examples, and focused practice.
Mapped, conditional, and utility types
Build practical understanding through visual explanations, guided examples, and focused practice.
Zod, typed APIs, React, and testing
Build practical understanding through visual explanations, guided examples, and focused practice.
15 builds, migration, and interview prep
Build practical understanding through visual explanations, guided examples, and focused practice.
Who this course is for
Working web developers
Fill knowledge gaps and apply TypeScript concepts more confidently in practical work.
Designers and product builders
Use structured lessons and focused practice to support projects, interviews, and career growth.
Topics
Types, unions, narrowing, and genericsMapped, conditional, and utility typesZod, typed APIs, React, and testing15 builds, migration, and interview prepTypeScript fundamentalsPractical examplesDebugging techniquesProduction best practicesInterview preparation
Syllabus
What is inside the course
Review the TypeScript curriculum module by module, from core concepts through real build projects and interview prep.
01Getting Started4 lessons • 46 min
See what TypeScript is and why it exists, how the compiler checks and erases types, set up your tools and tour your first project.
What TypeScript Is and Why It Exists9:47
How TypeScript Works10:59
Setting Up Your Tools11:49
Tour of Your First Project13:07
02The JavaScript You Need5 lessons • 1h 3m
Learn exactly the modern JavaScript TypeScript builds on: arrow functions, arrays and objects, modules, async code and classes.
let, const and Arrow Functions12:24
Arrays and Objects14:01
Modules: import and export12:33
Asynchronous Code11:27
Classes and this in One Picture12:15
03Types, Step by Step7 lessons • 1 build • 1h 35m
Annotate and infer types, use arrays, tuples, unions and literals, handle null safely in strict mode, and type a real catalogue.
Annotations and Inference10:50
Arrays, Tuples and readonly13:28
Objects and Type Aliases12:55
Union and Literal Types11:05
any, unknown and never11:43
null, undefined and Strict Mode9:47
Enums, as const and Literal Objects13:11
A Typed Course Catalogue12:02
04Functions and Objects6 lessons • 1h 5m
Type functions, callbacks and overloads, describe objects with interfaces and Record, and see why structural typing works.
Typing Functions12:25
Rest Parameters and Callbacks13:29
Overloads8:51
Interfaces8:55
Index Signatures, Record and Excess Property Checks11:13
Structural Typing10:02
05Narrowing and Unions6 lessons • 1 build • 1h 30m
Narrow unions with typeof, in and custom guards, model results with discriminated unions and let never catch a missed case.
Narrowing with typeof, in and Equality12:40
instanceof and Discriminated Unions12:46
Custom Type Guards11:56
Exhaustive Checks with never9:26
satisfies, as const and Type Assertions14:16
Control-Flow Analysis15:36
A Payment Result Handler13:22
06Classes and Object-Oriented TypeScript5 lessons • 1 build • 1h 22m
Write typed classes with access modifiers, abstract classes and implements, and prefer composition in a typed shopping cart.
Classes in TypeScript12:23
public, private, protected and #private14:17
Inheritance, Abstract Classes and implements15:07
Static Members, Getters and Setters12:54
Composition Over Inheritance12:04
A Typed Shopping Cart14:45
07Generics6 lessons • 1 build • 1h 35m
Write generic functions, interfaces and classes, constrain them with extends, and build one typed repository for every entity.
Why Generics11:30
Generic Functions and Inference12:31
Constraints with extends16:11
Generic Interfaces, Classes and Type Aliases13:04
Generics in the Wild14:02
Generic Mistakes14:16
A Typed Repository13:01
08Type Operators and Utility Types7 lessons • 1h 25m
Build types from other types with keyof, indexed access, mapped and conditional types, and read the built-in utility types.
keyof and typeof11:39
Indexed Access Types11:38
Mapped Types11:52
Conditional Types12:23
The Utility Types12:33
Writing Your Own Utility Types13:23
Reading Complicated Types11:45
09Advanced Type-Level Programming5 lessons • 1 build • 1h 11m
Use template literal, recursive and branded types, test your types, and keep them fast and readable in type-safe routes.
Template Literal Types11:30
Recursive Types and Variadic Tuples12:34
Branded Types10:13
Type-Level Testing9:48
Keeping Types Fast and Readable12:12
Type-Safe Routes and Events14:37
10Projects, Modules and Tooling6 lessons • 1 build • 1h 17m
Master tsconfig.json, ESM and CommonJS, declaration files, builds, project references, workspaces, linting and formatting.
tsconfig.json in Depth13:45
ESM and CommonJS10:46
Declaration files9:49
Running and Building8:58
Project References and npm Workspaces9:28
Linting and Formatting11:23
A Multi-Package Workspace13:20
11Runtime Safety: Validation and Errors5 lessons • 1 build • 1h 7m
Validate data at runtime with Zod, parse instead of validating, return errors as values and type async code end to end.
Why Types Vanish at Runtime9:43
Validating with Zod9:47
Parse, Do Not Validate10:57
Errors as Values11:45
Typing Async Code11:03
A Typed Config and Input Layer13:37
12A Typed Backend with Node6 lessons • 1 build • 1h 24m
Build a typed HTTP API with Hono, Zod and a typed database layer, add auth middleware, typed errors, tests and Docker.
A First Typed HTTP Server with Hono11:45
Typed Validation with Zod9:43
A Typed Database Layer11:59
Authentication and Middleware, Typed10:18
Typed Errors, Logging and Project Structure12:07
Testing the API and Docker13:21
The allcsvideos API in TypeScript14:40
13TypeScript with React5 lessons • 1 build • 1h 10m
Type React components, props, events and hooks, write generic components, and fix the common React type errors.
Typing Components, Props, Children and Events10:57
Typing Hooks13:32
Generic Components and Polymorphic Props10:39
Typing Data Fetching10:56
Common React Type Errors, Explained and Fixed10:24
A Typed Course Dashboard13:15
14Testing Typed Code4 lessons • 46 min
Test typed code with Vitest, mock with types, write type tests and run coverage in CI.
Unit Tests with Vitest11:58
Mocking with Types11:25
Type Tests10:23
Coverage and CI11:46
15Migrating JavaScript to TypeScript4 lessons • 1 build • 59 min
Plan and carry out a JavaScript to TypeScript migration, fix the common errors and migrate a 40-file app.
Planning a Migration11:24
Typing Legacy Code11:17
Fixing the Common Migration Errors11:23
Keeping a Team Moving11:57
Migrate a 40-File JavaScript App13:07
16Writing Libraries and Public APIs5 lessons • 1 build • 1h 8m
Design typed public APIs, publish a package with declaration files, avoid breaking changes and ship a utility library.
Designing a Typed API10:27
Generics for Library Authors10:25
Publishing a Package11:28
Declaration Output and Breaking Changes10:48
Documentation, Examples and Versioning11:32
A Small Typed Utility Library13:24
17Patterns and Architecture5 lessons • 1 build • 1h 10m
Model domains with types, inject dependencies through interfaces, build state machines and a typed order workflow.
Typed Domain Models11:59
Dependency Injection and Interfaces11:52
State Machines with Discriminated Unions10:17
Typed Events and the Builder Pattern11:35
Folder Structure and Boundaries10:47
A Typed Order Workflow13:00
18Full-Stack Type Safety4 lessons • 1 build • 59 min
Share one source of truth for types across server and client, with typed API clients, end-to-end calls and monorepos.
One Source of Truth for Types10:28
Typed API Clients10:50
End-to-End Typed Calls (tRPC Style)11:42
Monorepos and Shared Types11:53
A Full-Stack Typed Learner App14:21
19Debugging Types and Performance3 lessons • 34 min
Read hard compiler errors, find and fix slow types, and avoid the common TypeScript traps.
Reading Hard Errors10:50
When Types Are Slow11:41
Common Traps11:59
20Interview Preparation5 lessons • 1h 8m
Prepare for TypeScript interviews: the 50 most-asked questions, type challenges, coding with types and a mock interview.
The TypeScript Interview Map11:42
The 50 Most-Asked TypeScript Questions15:46
Type Challenges15:58
Coding with Types13:08
A Mock Interview and a Roadmap11:31
21Capstone2 lessons • 2 builds • 52 min
Plan and build the typed allcsvideos platform capstone, then finish with a full mock interview day.
Capstone Plan11:20
Capstone Walkthrough10:30
Capstone: The allcsvideos Typed Platform17:40
Mock Interview Day12:57
21Modules
120Videos
105Lessons
15Builds
Combos
Learn a whole skill, not one topic
Courses grouped into a path, in the order we would teach them. One payment, and every course in the set gets 3 months of access per course in the set.
RecommendedSave 15%
TypeScript & React Developer Combo
Type-safe front ends: TypeScript in depth, React to build the UI and system design to plan it.
TypeScript
120 videos · All Level
React
114 videos · All Level
System Design
122 videos · All Level
RecommendedSave 15%
TypeScript Backend Engineer Combo
Typed Node APIs with TypeScript, shipped with DevOps and designed to scale.
TypeScript
120 videos · All Level
DevOps
110 videos · All Level
System Design
122 videos · All Level
Interview readySave 10%
C++ Interview Prep Combo
Crack coding rounds with DSA in C++, then clear the system design round.
DSA with C++
218 videos · All Level
System Design
122 videos · All Level
Longer access with more courses (3 courses = 7 months each)A certificate for each course in the combo
Course certificate
Showcase your skills with a course certificate
Complete every TypeScript lesson to earn a verified AllCSVideos certificate that demonstrates your commitment and newly developed skills.
Verified proof of completion
Receive a unique certificate ID that confirms your completed course.
Ready to share
Add your achievement to LinkedIn, your portfolio, resume, or social profile.
Accessible whenever you need it
Return to your certificate and learning record from your AllCSVideos account.
Testimonials
What learners say after finishing
Real learning stories from people building practical skills with visual notes.
4.8/5
10,000+ verified public & course reviews
Learner story
“The visual notes finally made React hooks click for me. I had watched several tutorials before, but this was the first time the concepts felt connected. I finished the course during one week of train rides.”
Learner story
“I used one DSA lesson each morning and became much more confident explaining solutions in interviews.”
Learner story
“Short pages, no filler. I stopped abandoning courses halfway once I switched to reading instead of watching.”
Learner story
“The Python examples went straight into my project the same afternoon. Clear and practical from the first lesson.”
Learner story
“I keep the SQL notes open while I work. Joins and window functions are easier to recall because I can find the exact visual explanation in seconds. It has become a daily reference, not just a course I completed.”
Learner story
“My approach to system design became much more structured within a month of finishing the course.”
Learner story
“The TypeScript course helped me understand the reason behind the types, not only the syntax. My project code feels much safer now.”
Learner story
“I came for Next.js and stayed for the visual explanations. Server and client components finally make sense without replaying long videos.”
Learner story
“The Node.js course connected routing, validation, security, and deployment into one clear mental model. I now understand how the pieces fit together in a production API.”
Learner story
“Data Analytics felt much less intimidating once every workflow was broken into short visual steps. I could practice one idea at a time.”
Learner story
“The DevOps notes gave me a practical path from containers to delivery pipelines. I return to the diagrams whenever I need to explain a workflow to my team.”
Learner story
“Generative AI finally felt concrete. The sections on prompts, RAG, and evaluation helped me move from experiments to a project I could actually demonstrate.”
Are these video courses?
Yes. Every lesson is a short animated video with voice explanation, so you can watch, pause, and rewatch any concept whenever you need a quick explanation.
How long does one course take to finish?
The DSA with C++ course has 218 videos with more than 25 hours of content, the DSA with Java course has 218 videos with more than 26 hours, the DSA with Python course has 218 videos with more than 26 hours, the System Design course has 122 videos with more than 32 hours, the Spring Boot course has 105 videos with more than 24 hours, the Generative AI course has 98 videos with more than 25 hours, the DevOps course has 110 videos with more than 32 hours, the Python course has 120 videos with more than 34 hours, the React course has 114 videos with more than 24 hours, and the TypeScript course has 120 videos with more than 24 hours. Most lessons take under fifteen minutes. Your completion time depends on your pace, but you can make useful progress every day.
How long do I get access?
Each purchase gives you 3 months of access. You can renew anytime for the same price. If you renew early, the new 3 months are added after your current access ends, so you lose no days.
Do I get a certificate?
Yes. You receive a certificate after completing each eligible course. It can be shared as evidence of the topics and practical skills you covered.
What skill level do I need to start?
The course begins at a beginner level and requires no previous DSA experience. Basic C++ is covered in the first module, so you can start from the beginning.
Do I keep access to my course?
You keep access for 3 months from your purchase. After that you can renew at any time, and your saved progress is waiting for you when you come back.
Do the lessons get updated?
Yes. When an important tool, technique, or standard changes, affected lessons are updated and the new version appears in your course at no extra cost.