This is a tutorial discussing TypeScript and seven useful TypeScript types. It covers obtaining type information, manipulating types, and demonstrates utility types like `return type`, `keyof`, `partial`, `omit`, and `exclude`. The video provides practical applications for developers and emphasizes their usefulness in TypeScript projects.
Here are the key facts extracted from the text:
1. TypeScript is described as big and important for developers.
2. There are seven useful TypeScript types discussed.
3. The "type" keyword is used to define types in TypeScript.
4. TypeScript has a built-in utility type called "return type" for functions.
5. The "awaited" utility type is used with asynchronous functions to get the result.
6. The "prettify" type is introduced for viewing nested properties.
7. TypeScript has utility types like "partial," "required," "omit," and "exclude" for working with objects.
8. The "omit" and "exclude" utility types are used to remove properties from object types.
These facts summarize the key information from the text without including opinions.