list from

Promise / Async functions

29. implement async helper - `sequence()`

30. implement async helper - `parallel()`

31. implement async helper - `race()`

32. implement `Promise.all()`

33. implement `Promise.allSettled()`

34. implement `Promise.any()`

35. implement `Promise.race()`

54. flatten Thunk

56. call APIs with pagination

64. auto-retry Promise on rejection

67. create your own Promise

92. throttle Promises