TypeScript Roadmap
JavaScript with type safety and better tooling
About This Roadmap
TypeScript is a typed superset of JavaScript that compiles to plain JavaScript, adding static type checking and improved developer experience. This roadmap covers TypeScript fundamentals, type annotations, interfaces, generics, advanced types, decorators, and integration with popular frameworks. TypeScript catches errors at compile time, provides better IDE support with autocomplete and refactoring, and makes code more maintainable and self-documenting. It's widely adopted by major companies and frameworks including Angular, Vue 3, and increasingly React projects. TypeScript is essential for large-scale JavaScript applications and is becoming the standard for modern web development.
Prerequisites
- Strong JavaScript knowledge
- ES6+ features
- Basic programming concepts
What You'll Learn
Complete Learning Path
3-4 weeks
1Setup & Config
Installation, tsconfig.json, compiler options
2Basic Types
string, number, boolean, arrays, tuples
3Type Annotations
Variable, function, parameter types
4Type Inference
How TS infers types automatically
4-6 weeks
1Interfaces
Interface syntax, optional properties, readonly
2Type Aliases
Type vs interface, when to use each
3Union & Intersection
Combining types, type guards
4Literal Types
String/number literals, const assertions
4-6 weeks
1Generics
Generic functions, classes, constraints
2Utility Types
Partial, Required, Pick, Omit, Record
3Mapped Types
Creating types from other types
4Conditional Types
Type conditions, infer keyword
3-4 weeks
1Classes
Class syntax, constructors, properties
2Access Modifiers
public, private, protected, readonly
3Inheritance
extends, super, abstract classes
4Decorators
Class, method, property decorators
2-3 weeks
1Modules
Import/export, default exports, re-exports
2Namespaces
Namespace syntax, when to use
3Declaration Files
.d.ts files, @types packages
4Module Resolution
Classic vs Node resolution
4-6 weeks
1React with TS
Typing components, props, hooks
2Node.js with TS
Backend TypeScript, Express typing
3Testing
Jest with TypeScript, type testing
4Best Practices
Strict mode, linting, migration strategies
Tools & Technologies
Career Opportunities
- Frontend Developer
- Full Stack Developer
- TypeScript Developer
- Software Engineer