Apply types to more complex data structures like arrays and objects.
Continue your TypeScript learning journey with Learn TypeScript: Complex Types. You'll learn to apply types to more complex data structures like arrays and objects. You'll also learn to define custom types and give convenient names to your types using type aliases.
### Skills you’ll gain
* Apply type annotations for arrays and tuples.
* Use rest and spread operators with TypeScript.
* Define custom types in TypeScript.
### Notes on prerequisites
We recommend that you complete [Learn TypeScript: Functions](https://www.codecademy.com/learn/learn-typescript-functions) before starting this course.
Continue your TypeScript learning journey with Learn TypeScript: Complex Types. You'll learn to apply types to more complex data structures like arrays and objects. You'll also learn to define custom types and give convenient names to your types using type aliases.
### Skills you’ll gain
* Apply type annotations for arrays and tuples.
* Use rest and spread operators with TypeScript.
* Define custom types in TypeScript.
### Notes on prerequisites
We recommend that you complete [Learn TypeScript: Functions](https://www.codecademy.com/learn/learn-typescript-functions) before starting this course.
