learning typescript

todo :

1. https://dev.to/t/typescript
2. handling exception
3. https://fireship.io/lessons/object-oriented-programming-with-typescript/
4. https://blog.logrocket.com/tag/typescript/
5. move https://github.com/mithunkumarc/typescript_examples here
6. https://www.tutorialsteacher.com/typescript/type-assertion
7. https://www.digitalocean.com/community/tutorials/typescript-tuples
8. set map
9. unions intersections
10. https://blog.rsuter.com/how-to-instantiate-a-generic-type-in-typescript/
11. https://fettblog.eu/
12. https://github.com/PacktPublishing/Understanding-TypeScript-2020-Edition