TypeScript Course: Basic to Advanced

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Introduction to TypeScript

Understand why TypeScript exists and how it improves JavaScript. Learn the fundamentals of TypeScript setup and configuration.

Please enroll in this course to access the modules.

Learning objectives • Understand what TypeScript is and its benefits • Learn how TypeScript differs from JavaScript • Set up TypeScript development environment • Create your first TypeScript program • Understand TypeScript compilation process

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TypeScript Basics

Learn syntax and core building blocks of TypeScript including variables, data types, and type annotations.

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Learning objectives • Master TypeScript file structure • Understand variable declarations (let, const) • Learn basic data types (number, string, boolean, null, undefined, any) • Understand type inference and type annotations • Learn about strict mode

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Operators & Control Flow

Control logic using conditions and operators. Learn about arithmetic, comparison, logical operators, and conditional statements.

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Learning objectives • Master arithmetic, comparison, and logical operators • Understand conditional statements (if, else, switch, ternary) • Learn type narrowing with conditions • Apply control flow in TypeScript

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Functions in TypeScript

Write safe and predictable functions with proper typing, parameters, and return types.

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Learning objectives • Master function syntax and parameter types • Understand return types (void, never) • Learn optional, default, and rest parameters • Understand arrow functions and function overloading

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Arrays & Tuples

Work with collections safely using typed arrays and tuples.

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Learning objectives • Understand array type syntax and generics • Learn about readonly arrays • Master tuple types and their use cases • Understand tuple vs array differences

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Objects & Type Aliases

Structure data clearly using object types and type aliases.

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Learning objectives • Master object type definitions • Understand type aliases • Learn optional and readonly properties • Work with nested objects and index signatures

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Enums & Literal Types

Restrict values and improve readability using enums and literal types.

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Learning objectives • Understand numeric and string enums • Learn about const enums • Master literal types and union of literals • Compare enums vs union types

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Union & Intersection Types

Combine and restrict types effectively using union and intersection types with type guards.

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Learning objectives • Master union types (|) and intersection types (&) • Understand type guards (typeof, in, instanceof) • Learn custom type guards • Apply type narrowing techniques

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Interfaces

Build scalable type contracts using interfaces for objects, functions, and classes.

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Learning objectives • Understand what interfaces are • Master interface definitions and properties • Learn interface inheritance • Implement interfaces in classes • Use interfaces for API response models

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Classes & OOP in TypeScript

Master object-oriented programming with TypeScript classes, inheritance, and access modifiers.

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Learning objectives • Create classes with constructors • Understand access modifiers (public, private, protected) • Learn getters, setters, and inheritance • Master abstract classes and static members

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Generics

Write reusable, type-safe code using generics for functions, interfaces, and classes.

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Learning objectives • Understand what generics are and why they matter • Master generic functions, interfaces, and classes • Learn multiple type parameters and constraints • Apply generics in real-world scenarios

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Advanced Types

Unlock TypeScript's real power with advanced type manipulation and utility types.

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Learning objectives • Master keyof, typeof, and indexed access types • Understand mapped types and conditional types • Learn utility types (Partial, Required, Readonly, Pick, Omit, Record) • Apply advanced types in complex scenarios

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Type Assertions & Type Casting

Work with external or unknown data safely using type assertions and casting.

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Learning objectives • Understand type assertions (as syntax) • Learn when and when not to use type assertions • Work with DOM elements • Understand unknown vs any

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Error Handling & Safety

Write robust and safe code with proper error handling and null safety.

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Learning objectives • Understand compile-time vs runtime errors • Master try-catch in TypeScript • Learn custom error classes • Understand strict null checks and non-null assertions

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Modules & Namespaces

Organize large applications using ES modules, imports, exports, and namespaces.

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Learning objectives • Master ES modules in TypeScript • Understand import and export syntax • Learn module resolution and path aliases • Know when to use modules vs namespaces

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TypeScript with JavaScript Projects

Migrate safely from JavaScript to TypeScript in existing projects.

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Learning objectives • Use TypeScript in existing JS projects • Understand allowJs and checkJs • Learn JSDoc types • Master gradual migration strategy • Handle third-party libraries with DefinitelyTyped

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TypeScript with Frontend Frameworks

Use TypeScript in real frontend applications with React, Angular, and Vue.

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Learning objectives • Use TypeScript with DOM • Master TypeScript with React (props, state, events) • Understand TypeScript with Angular and Vue • Apply TypeScript in frontend development

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TypeScript with Backend (Node.js)

Build backend applications using TypeScript with Node.js and Express.

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Learning objectives • Set up TypeScript with Node.js • Master Express with TypeScript • Type request and response objects • Understand middleware typing • Work with environment variables

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Tooling & Best Practices

Write professional TypeScript code with proper tooling and best practices.

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Learning objectives • Set up ESLint and Prettier with TypeScript • Use ts-node for development • Understand build and production setup • Learn project folder structure • Apply type safety best practices

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Real-World Projects

Apply everything learned through practical projects and code reviews.

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Learning objectives • Build a type-safe calculator • Create a user management system • Develop a REST API with TypeScript • Build a frontend app with TypeScript • Review and optimize code