Spaces:
Running
Running
File size: 1,580 Bytes
7339b50 e485eac 48feff6 e9e13d8 d417768 48c286d |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 |
# Changelog of the functional-programming course
## 2025-04-07
* the `apply` method of `Maybe` *Applicative* should return `None` when `fg` or `fa` is `None`
+ add `sequenceL` as a classmethod for `Applicative` and add examples for `Wrapper`, `Maybe`, `List`
+ add description for utility functions of `Applicative`
* refine the implementation of `IO` *Applicative*
* reimplement `get_chars` with `IO.sequenceL`
+ add an example to show that `ListMonoidal` is equivalent to `List` *Applicative*
## 2025-04-06
- remove `sequenceL` from `Applicative` because it should be a classmethod but can't be generically implemented
## 2025-04-02
* `0.1.0` version of notebook `06_applicatives.py`
## 2025-03-16
+ Use uppercased letters for `Generic` types, e.g. `A = TypeVar("A")`
+ Refactor the `Functor` class, changing `fmap` and utility methods to `classmethod`
For example:
```python
@dataclass
class Wrapper(Functor, Generic[A]):
value: A
@classmethod
def fmap(cls, f: Callable[[A], B], a: "Wrapper[A]") -> "Wrapper[B]":
return Wrapper(f(a.value))
>>> Wrapper.fmap(lambda x: x + 1, wrapper)
Wrapper(value=2)
```
+ Move the `check_functor_law` method from `Functor` class to a standard function
- Rename `ListWrapper` to `List` for simplicity
- Remove the `Just` class
+ Rewrite proofs
## 2025-03-13
* `0.1.0` version of notebook `05_functors`
Thank [Akshay](https://github.com/akshayka) and [Haleshot](https://github.com/Haleshot) for reviewing
## 2025-03-11
* Demo version of notebook `05_functors.py`
|