TypeScript tips that could save your life

Transcript

1. TypeScript tips that could save your life
2. who am I_ {twitter, youtube, linkedin…}.lsantos.dev software engineer_ hello@lsantos.dev
3. typescript can be tricky sometimes
4. so let's cut to the chase_
5. tsconfig extension_
11. It's not only for bases
12. It's not only for bases
13. type_ testing
14. one native way: *.typetest.ts files
15. one native way: *.typetest.ts files https://lsantos.dev/keychain-pull
16. the (more) native way
17. vitest
18. tsd https://lsantos.dev/tsd-lib
19. move errors to types
20. instead of this
21. do this
22. branded types_
23. UUIDs are the perfect example
24. to brand a type
25. to brand a type
26. even better
27. but well… Why isn't this working
28. but well… Why isn't this working To be continued…
29. but there's another example
30. type guards_
31. but well… Why isn't this working
32. now we have something
33. but this if…
34. assertion functions
35. assertion out of tests
36. understand your enums_
37. enums produce valid JavaScript
38. enums produce valid JavaScript
39. numeric enums
40. string enums
41. constant enums
42. constant enums
43. obrigado_ lsantos.dev