TypeScript Skills Guide: Salary Impact & Learning Path
TypeScript has become the standard for professional JavaScript development. It adds static typing to JavaScript, catching errors at compile time and improving code maintainability. Knowing TypeScript is increasingly expected rather than optional - 78% of job postings for frontend roles now mention TypeScript.
Key Facts
- 78% of frontend job postings mention TypeScript
- TypeScript devs earn 10-15% more than JavaScript-only devs
- React + TypeScript is the most in-demand combination
- Learning time: 2-4 weeks for basics, 3-6 months for mastery
- TypeScript is now default for new projects at most companies
Salary Impact
TypeScript expertise correlates with 10-15% higher salaries compared to JavaScript-only developers. At senior levels, the gap widens further. Companies value TypeScript because it reduces bugs and improves team velocity.
What to Learn
Fundamentals
- Basic types, interfaces, type aliases
- Union and intersection types
- Generics and type inference
- Type guards and narrowing
Intermediate
- Utility types (Partial, Required, Pick, Omit)
- Conditional types
- Mapped types
- Module resolution
Advanced
- Template literal types
- Decorators
- Declaration files
- Compiler API
Where TypeScript Matters Most
Frontend Frameworks: React with TypeScript is standard. Next.js, Remix, and modern frameworks are TypeScript-first.
Backend Node.js: NestJS, tRPC, and enterprise Node apps use TypeScript extensively.
Full Stack: tRPC enables end-to-end type safety. This is a major productivity boost.
Large Codebases: Any team with 5+ developers almost certainly uses TypeScript.
Career Advice
If you know JavaScript but not TypeScript, prioritize learning it now. Start by typing an existing JavaScript project - you'll encounter real problems and solutions. Contribute to open source TypeScript projects to demonstrate expertise.
Frequently Asked Questions
How long does it take to learn TypeScript?
If you know JavaScript well, basic TypeScript takes 2-4 weeks. Becoming proficient with advanced features takes 3-6 months of regular use. You'll learn fastest by converting existing JS projects.
Is TypeScript replacing JavaScript?
TypeScript compiles to JavaScript, so you're always running JS. But for development, TypeScript is becoming the standard for professional work. Small scripts might still be written in plain JS, but applications are almost all TypeScript now.
Stop guessing. Start winning.
Paste any job posting. See exactly where you match, where you don't, and how to address gaps in your application.
Free to start. No credit card.
Want to see it in action first? or to discover your ideal path.