What are the differences between TypeScript and JavaScript types?

What are the main differences between TypeScript and JavaScript types?

TypeScript is a superset of JavaScript that adds static typing. This means you can define types for variables, function parameters, and return values, which helps catch errors at compile time. JavaScript, on the other hand, is dynamically typed, meaning types are determined at runtime.

Can you give me examples of how to define types in TypeScript?

Sure! In TypeScript, you can define types using interfaces or type aliases. For example:

interface User {
  name: string;
  age: number;
}

const user: User = { name: 'Alice', age: 30 };

What are the benefits of using TypeScript over JavaScript?

Some benefits of TypeScript include improved code quality through type checking, better tooling support with IDEs, and enhanced readability and maintainability of code.

Are there any downsides to using TypeScript?

Yes, some downsides include a steeper learning curve for beginners, the need for a build step to compile TypeScript to JavaScript, and potential overhead in terms of development time.