TypeScript Fundamentals - OryNet IT Services & Consulting

UNIT 1: Introduction to TypeScript
Objective: Understand why TypeScript exists.

Limitations of JavaScript in large applications
What is TypeScript
TypeScript vs JavaScript
Benefits of static typing
Real-world use cases
Companies using TypeScript

UNIT 2: TypeScript Environment Setup
Objective: Learn how to work with TypeScript tools.

UNIT 3: Basic Types in TypeScript
Objective: Apply static typing to variables.

UNIT 4: Functions in TypeScript
Objective: Write type-safe functions.

UNIT 5: Arrays, Tuples & Enums
Objective: Work with collections and structured values.

UNIT 6: Objects & Type Aliases
Objective: Model real-world data.

UNIT 7: Interfaces
Objective: Define contracts in TypeScript.

UNIT 8: Union & Intersection Types
Objective: Handle flexible data safely.

UNIT 9: Type Guards & Narrowing
Objective: Safely work with dynamic data.

UNIT 10: Classes in TypeScript
Objective: Apply object-oriented principles.

UNIT 11: Generics
Objective: Write reusable, type-safe code.

UNIT 12: Modules & Namespaces
Objective: Organize TypeScript projects.

UNIT 13: TypeScript with JavaScript Projects
Objective: Integrate TS into existing JS code.

UNIT 14: Error Handling & Best Practices
Objective: Write reliable TypeScript code.

UNIT 15: Practical Mini Projects
Objective: Apply TypeScript fundamentals.

UNIT 16: TypeScript Fundamentals Capstone
Objective: Build a complete TypeScript-based application.

Course Content

UNIT 1: Introduction to TypeScript Objective: Understand why TypeScript exists.

Limitations of JavaScript in large applications

What is TypeScript

TypeScript vs JavaScript

Benefits of static typing

Real-world use cases

Companies using TypeScript

UNIT 2: TypeScript Environment Setup Objective: Learn how to work with TypeScript tools.

Installing Node.js & npm

Installing TypeScript compiler

TypeScript configuration (tsconfig.json)

Compiling TypeScript to JavaScript

Understanding build output

Using TypeScript with editors (VS Code)

UNIT 3: Basic Types in TypeScript Objective: Apply static typing to variables.

Type annotations

number, string, boolean

any, unknown, void, never

null and undefined

Type inference

Best practices for basic types

UNIT 4: Functions in TypeScript Objective: Write type-safe functions.

Typing function parameters

Return types

Optional and default parameters

Rest parameters

Arrow functions with types

Function overloading (intro)

UNIT 5: Arrays, Tuples & Enums Objective: Work with collections and structured values.

Typed arrays

Array generics

Tuples and fixed-length data

Enums (numeric and string)

Use cases for enums

Enum vs union types

UNIT 6: Objects & Type Aliases Objective: Model real-world data.

Object type annotations

Type aliases

Optional properties

Readonly properties

Nested object types

Comparing inline types vs aliases

UNIT 7: Interfaces Objective: Define contracts in TypeScript.

Interface syntax

Optional and readonly properties

Interface vs type alias

Function interfaces

Extending interfaces

Implementing interfaces in objects

UNIT 8: Union & Intersection Types Objective: Handle flexible data safely.

Union types (|)

Intersection types (&)

Type narrowing

Literal types

Real-world examples

UNIT 9: Type Guards & Narrowing Objective: Safely work with dynamic data.

typeof type guards

instanceof

Custom type guards

Control flow analysis

Safe property access

UNIT 10: Classes in TypeScript Objective: Apply object-oriented principles.

Class syntax

Constructors

Access modifiers (public, private, protected)

Readonly members

Inheritance

Abstract classes (intro)

UNIT 11: Generics Objective: Write reusable, type-safe code.

Generic functions

Generic interfaces

Generic classes

Constraints on generics

Practical use cases

UNIT 12: Modules & Namespaces Objective: Organize TypeScript projects.

ES module syntax

Importing and exporting types

Default vs named exports

Module resolution basics

UNIT 1: Introduction to TypeScript
Objective: Understand why TypeScript exists.

UNIT 2: TypeScript Environment Setup
Objective: Learn how to work with TypeScript tools.

UNIT 3: Basic Types in TypeScript
Objective: Apply static typing to variables.

UNIT 4: Functions in TypeScript
Objective: Write type-safe functions.

UNIT 5: Arrays, Tuples & Enums
Objective: Work with collections and structured values.

UNIT 6: Objects & Type Aliases
Objective: Model real-world data.

UNIT 7: Interfaces
Objective: Define contracts in TypeScript.

UNIT 8: Union & Intersection Types
Objective: Handle flexible data safely.

UNIT 9: Type Guards & Narrowing
Objective: Safely work with dynamic data.

UNIT 10: Classes in TypeScript
Objective: Apply object-oriented principles.

UNIT 11: Generics
Objective: Write reusable, type-safe code.

UNIT 12: Modules & Namespaces
Objective: Organize TypeScript projects.

UNIT 13: TypeScript with JavaScript Projects
Objective: Integrate TS into existing JS code.

UNIT 14: Error Handling & Best Practices
Objective: Write reliable TypeScript code.

UNIT 15: Practical Mini Projects
Objective: Apply TypeScript fundamentals.

UNIT 16: TypeScript Fundamentals Capstone
Objective: Build a complete TypeScript-based application.