TypeScript vs JavaScript comparison

1. Typing System:

   • TypeScript: Strongly typed with static type checking. Supports types like string, number, boolean, object, any, unknown, etc.
   • JavaScript: Dynamically typed. No built-in type checking.

2. Compilation:

   • TypeScript: Requires compilation into JavaScript before execution.
   • JavaScript: Runs directly in browsers or Node.js without compilation.

3. Tooling:

   • TypeScript: Better tooling support (e.g., autocompletion, refactoring, and type inference).
   • JavaScript: Limited tooling compared to TypeScript.

4. Error Detection:

   • TypeScript: Catches errors at compile time.
   • JavaScript: Errors are often caught at runtime.

5. Learning Curve:

   • TypeScript: Steeper learning curve due to additional concepts like interfaces, generics, and decorators.
   • JavaScript: Easier to learn for beginners.

6. Compatibility:

   • TypeScript: Superset of JavaScript. All valid JavaScript code is valid TypeScript.
   • JavaScript: Not compatible with TypeScript-specific features.

7. Use Cases:

   • TypeScript: Ideal for large-scale applications and teams.
   • JavaScript: Suitable for smaller projects or quick prototyping.

8. Community and Ecosystem:

   • TypeScript: Growing rapidly with strong community support.
   • JavaScript: Larger and more mature ecosystem.

9. Performance:

   • TypeScript: No runtime performance difference since it compiles to JavaScript.
   • JavaScript: Direct execution, but performance depends on the code quality.

10. Adoption:

    • TypeScript: Increasingly adopted in enterprise-level applications.
    • JavaScript: Universally used for web development.

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