Advanced TypeScript Techniques - OryNet IT Services & Consulting

UNIT 1: Deep Dive into the TypeScript Type System
Objective: Understand how TypeScript thinks.

Structural typing vs nominal typing
Type compatibility rules
Assignability and variance
Covariance, contravariance, bivariance
Type widening and narrowing
Common misconceptions

UNIT 2: Advanced Type Inference
Objective: Let TypeScript work for you.

UNIT 3: Union, Intersection & Literal Types (Advanced Use)
Objective: Model real-world complexity safely.

UNIT 4: Type Guards & Control Flow Analysis
Objective: Safely narrow complex types.

UNIT 5: Generics – Advanced Patterns
Objective: Write reusable, type-safe abstractions.

UNIT 6: Mapped Types
Objective: Transform types programmatically.

UNIT 7: Conditional Types
Objective: Build logic at the type level.

UNIT 8: Utility Types – Internal & Custom
Objective: Use and extend built-in utilities.

UNIT 9: Advanced Interfaces & Class Typing
Objective: Apply strong typing in OOP systems.

UNIT 10: TypeScript with APIs & External Data
Objective: Safely handle external data.

UNIT 11: TypeScript Configuration & Strict Mode
Objective: Control compiler behavior professionally.

UNIT 12: TypeScript in Large Codebases
Objective: Scale TypeScript effectively.

UNIT 13: Performance, Maintainability & Best Practices
Objective: Write clean, future-proof TypeScript.

UNIT 14: Advanced TypeScript Design Patterns
Objective: Apply proven architectural patterns.

UNIT 15: Advanced Practical Projects
Objective: Apply advanced typing in real scenarios.

UNIT 16: Advanced TypeScript Capstone
Objective: Build an enterprise-level TypeScript system.

Course Content

UNIT 1: Deep Dive into the TypeScript Type System Objective: Understand how TypeScript thinks.

Structural typing vs nominal typing

Type compatibility rules

Assignability and variance

Covariance, contravariance, bivariance

Type widening and narrowing

Common misconceptions

UNIT 2: Advanced Type Inference Objective: Let TypeScript work for you.

Inference in variables and functions

Contextual typing

Best common type

Inference with generics

When inference fails and why

Designing APIs for better inference

UNIT 3: Union, Intersection & Literal Types (Advanced Use) Objective: Model real-world complexity safely.

Discriminated unions

Exhaustive type checking

Intersection pitfalls

Literal unions for domain modeling

Real-world validation patterns

UNIT 4: Type Guards & Control Flow Analysis Objective: Safely narrow complex types.

Built-in type guards

Custom type guards

User-defined type predicates

Control flow based type narrowing

Defensive programming with types

UNIT 5: Generics – Advanced Patterns Objective: Write reusable, type-safe abstractions.

Generic constraints

Default generic types

Multiple generic parameters

Generic utility functions

Designing reusable libraries with generics

UNIT 6: Mapped Types Objective: Transform types programmatically.

keyof operator

Index access types

Readonly and optional modifiers

Custom mapped types

Practical transformation use cases

UNIT 7: Conditional Types Objective: Build logic at the type level.

Conditional type syntax

extends in types

Type inference with infer

Recursive conditional types

Real-world conditional patterns

UNIT 8: Utility Types – Internal & Custom Objective: Use and extend built-in utilities.

Built-in utility types (Partial, Pick, Omit, etc.)

When to use each utility

Writing custom utility types

Avoiding over-engineering

UNIT 9: Advanced Interfaces & Class Typing Objective: Apply strong typing in OOP systems.

Interface inheritance chains

Abstract classes with typing

Implementing complex contracts

Access modifiers & design implications

Dependency injection patterns

UNIT 10: TypeScript with APIs & External Data Objective: Safely handle external data.

Typing API responses

Runtime vs compile-time mismatch

Defensive typing strategies

Error-safe API layers

Data validation patterns

UNIT 11: TypeScript Configuration & Strict Mode Objective: Control compiler behavior professionally.

tsconfig.json deep dive

Strict mode flags

Performance vs safety trade-offs

Large project configuration strategies

UNIT 12: TypeScript in Large Codebases Objective: Scale TypeScript effectively.

Project references

Monorepo concepts

Incremental builds

Code organization strategies

Avoiding type bloat

UNIT 13: Performance, Maintainability & Best Practices Objective: Write clean, future-proof TypeScript.

Type complexity vs readability

Refactoring types safely

Avoiding over-typing

Balancing DX and safety

UNIT 14: Advanced TypeScript Design Patterns Objective: Apply proven architectural patterns.

Factory & builder patterns

UNIT 1: Deep Dive into the TypeScript Type System
Objective: Understand how TypeScript thinks.

UNIT 2: Advanced Type Inference
Objective: Let TypeScript work for you.

UNIT 3: Union, Intersection & Literal Types (Advanced Use)
Objective: Model real-world complexity safely.

UNIT 4: Type Guards & Control Flow Analysis
Objective: Safely narrow complex types.

UNIT 5: Generics – Advanced Patterns
Objective: Write reusable, type-safe abstractions.

UNIT 6: Mapped Types
Objective: Transform types programmatically.

UNIT 7: Conditional Types
Objective: Build logic at the type level.

UNIT 8: Utility Types – Internal & Custom
Objective: Use and extend built-in utilities.

UNIT 9: Advanced Interfaces & Class Typing
Objective: Apply strong typing in OOP systems.

UNIT 10: TypeScript with APIs & External Data
Objective: Safely handle external data.

UNIT 11: TypeScript Configuration & Strict Mode
Objective: Control compiler behavior professionally.

UNIT 12: TypeScript in Large Codebases
Objective: Scale TypeScript effectively.

UNIT 13: Performance, Maintainability & Best Practices
Objective: Write clean, future-proof TypeScript.

UNIT 14: Advanced TypeScript Design Patterns
Objective: Apply proven architectural patterns.

UNIT 15: Advanced Practical Projects
Objective: Apply advanced typing in real scenarios.

UNIT 16: Advanced TypeScript Capstone
Objective: Build an enterprise-level TypeScript system.