tstoys

some TypeScript toy codes

descriptions

1. generics, partial fields & pick
2. extends 1 add default fields. union string operations,
3. another way to do 2
4. use infer to implement FirstArgument and SecondArgument
5. Diff and Filter for union string, Omit for object
6. a comprehensive example: generic function
7. another comprehensive example: generic class
8. Intersection Types and Partial2