Advanced Types Development Tutorials, Guides & Insights

function identity<T>(arg: T): T {
  return arg;
}

const num = identity<number>(42); // T is replaced with number
const str = identity<string>('Hello'); // T is replaced with string

In this example, T is a type variable that allows the identity function to accept and return any type.

By leveraging these tools, you can significantly enhance the quality and safety of your TypeScript projects.

• Explore TypeScript features like decorators and namespaces.
• Use TypeScript with frameworks like React and Angular for type-safe development.
• Experiment with custom utility types for complex type transformations.