TypeScript Complete Tutorials Roadmap for Beginners and Professionals - Textnotes

TypeScript Complete Tutorials Roadmap for Beginners and Professionals

Learn TypeScript step by step with a complete tutorials roadmap covering basics, advanced concepts, real-world examples, and professional best practices for frontend and backend development.

1) Introduction to TypeScript

  1. What TypeScript is
  2. Why TypeScript is used
  3. Differences between JavaScript and TypeScript
  4. How TypeScript works in real projects

2) Environment Setup

  1. Installing Node.js
  2. Installing TypeScript
  3. Using the TypeScript compiler
  4. Running a TypeScript file

3) TypeScript Configuration

  1. What is tsconfig.json
  2. Important compiler options
  3. Strict mode and its benefits
  4. Source and output directories

4) Basic Data Types

  1. String
  2. Number
  3. Boolean
  4. Null and undefined
  5. Any and unknown
  6. Void and never

5) Variables and Type Inference

  1. Let and const
  2. Explicit typing
  3. Implicit typing
  4. Best practices

6) Functions in TypeScript

  1. Function parameter typing
  2. Return types
  3. Optional parameters
  4. Default parameters
  5. Arrow functions

7) Arrays and Tuples

  1. Typed arrays
  2. Readonly arrays
  3. Tuples and use cases

8) Object Types and Type Aliases

  1. Typing objects
  2. Using the type keyword
  3. Nested object structures

9) Interfaces

  1. Creating interfaces
  2. Extending interfaces
  3. Interface vs type
  4. Best practices

10) Union and Intersection Types

  1. Union types
  2. Intersection types
  3. Real-world examples

11) Type Narrowing

  1. Using typeof
  2. Using in operator
  3. Instanceof checks

12) Enums

  1. Numeric enums
  2. String enums
  3. Const enums
  4. Usage guidelines

13) Literal Types

  1. String literal types
  2. Number literal types
  3. Combining literal types

14) Optional and Readonly Properties

  1. Optional properties
  2. Readonly properties
  3. Immutability concepts

15) Type Assertions

  1. Using the as keyword
  2. Non-null assertion
  3. Safe usage practices

16) Generics

  1. Generic functions
  2. Generic interfaces
  3. Generic constraints

17) Utility Types

  1. Partial
  2. Required
  3. Readonly
  4. Pick
  5. Omit
  6. Record

18) Mapped Types

  1. Keyof operator
  2. Index signatures
  3. Custom mapped types

19) Conditional Types

  1. Using extends
  2. Conditional logic in types
  3. Practical examples

20) Discriminated Unions

  1. Tagged unions
  2. Switch-based handling
  3. Exhaustive type checking

21) Type Guards

  1. Built-in type guards
  2. Custom type guards
  3. Runtime type safety

22) Advanced Function Typing

  1. Function overloads
  2. Call signatures
  3. This parameter typing

23) Modules and Namespaces

  1. Import and export syntax
  2. Module resolution

24) Declaration Files

  1. Understanding d.ts files
  2. Typing JavaScript libraries
  3. Using third-party type definitions

25) Error Handling

  1. Typing error objects
  2. Custom error classes
  3. Safe exception handling

26) TypeScript with React

  1. Project setup
  2. Typing props
  3. Typing state
  4. Event handling

27) React Hooks with TypeScript

  1. UseState typing
  2. UseEffect typing
  3. UseRef typing
  4. UseContext typing

28) State Management with TypeScript

  1. Redux Toolkit setup
  2. Store typing
  3. Async action typing

29) TypeScript with Node.js

  1. Project structure
  2. Compilation process
  3. Running TypeScript in Node

30) Express.js with TypeScript

  1. Typing request and response
  2. Middleware typing
  3. Centralized error handling

31) API Validation and DTOs

  1. Request validation
  2. Response validation
  3. Data transfer objects

32) Database Integration

  1. Prisma or TypeORM
  2. Model typing
  3. Type-safe queries

33) Authentication and Authorization

  1. JWT typing
  2. Role-based access control
  3. Secure middleware

34) Environment Configuration

  1. Typing environment variables
  2. Configuration safety

35) Testing TypeScript Applications

  1. Unit testing
  2. Integration testing
  3. Mocking and coverage

36) TypeScript Best Practices

  1. Avoiding any
  2. Strict typing rules
  3. Maintainable code patterns

37) Linting and Formatting

  1. ESLint configuration
  2. Prettier setup
  3. Code quality standards

38) Project Architecture

  1. Clean architecture principles
  2. SOLID principles
  3. Folder structure design

39) Performance and Optimization

  1. Compile-time performance
  2. Type complexity management
  3. Build optimization

40) Build Tools

  1. Vite configuration
  2. Webpack basics
  3. ts-node usage

41) Monorepos and Shared Types

  1. Monorepo concepts
  2. Shared type packages
  3. Project organization

42) Docker and Deployment

  1. Dockerizing TypeScript applications
  2. Production-ready builds

43) Continuous Integration and Deployment

  1. Automated builds
  2. Testing pipelines
  3. Deployment workflows

44) Interview Preparation

  1. Common TypeScript interview questions
  2. Practical coding scenarios

45) Real-World Case Studies

  1. Large-scale TypeScript projects
  2. Scalability and maintainability