generics-for-go

README

Generics for go

A useful generic codes for go

Slice

1. Map
2. Reduce
3. Any
4. All
5. BinarySearch
6. Count
7. Filter
8. FilterIndex
9. FirstOf
10. FirstIndexOf
11. LastOf
12. LastIndexOf
13. Reverse
14. Foreach
15. GroupBy
16. Max
17. Min
18. Random
19. Shuffle
20. Sort
21. Chunk
22. Zip
23. JoinToString

Set

1. Add
2. Remove
3. Contains
4. FromSlice
5. FromMapKey
6. FromMapValue
7. ToSlice
8. Union
9. Intersect
10. Subtract
11. Equal
12. IsSubset
13. IsSuperset
14. IsDisjoint

Table

1. MapKey
2. MapValue
3. Reduce
4. Any
5. All
6. Count
7. Filter
8. Foreach
9. Random
10. FromSlices

Result

1. Success(T) Result[T]
2. Failed(error) Result[T]
3. Result[T].Ok() bool
4. Result[T].Unwrap() T
5. Result[T].Err() error

func main() {
	a := result.Failed[int](errors.New("new error"))

	fmt.Printf("ok: %v\n", a.Ok())
	fmt.Printf("err: %v\n", a.Err())
	fmt.Printf("value: %v\n", a.Unwrap())

	fmt.Println()

	a = result.Success(100)

	fmt.Printf("ok: %v\n", a.Ok())
	fmt.Printf("err: %v\n", a.Err())
	fmt.Printf("value: %v\n", a.Unwrap())
}

ok: false
err: new error
value: 0

ok: true
err: <nil>
value: 100

more

Option

1. Some(T) Result[T]
2. None() Result[T]
3. Result[T].Ok() bool
4. Result[T].Unwrap() T

func main() {
	a := option.Some("hello!")

	fmt.Printf("ok: %v\n", a.Ok())
	fmt.Printf("value: %v\n", a.Unwrap())

	fmt.Println()

	a = option.None[string]()

	fmt.Printf("ok: %v\n", a.Ok())
	fmt.Printf("value: %v\n", a.Unwrap())
}

ok: true
value: hello!

ok: false
value: 0

more