| // Package slices implements various slice algorithms. |
| package slices |
| |
| // Map turns a []T1 to a []T2 using a mapping function. |
| func Map[T1, T2 any](s []T1, f func(T1) T2) []T2 { |
| r := make([]T2, len(s)) |
| for i, v := range s { |
| r[i] = f(v) |
| } |
| return r |
| } |
| |
| // Reduce reduces a []T1 to a single value using a reduction function. |
| func Reduce[T1, T2 any](s []T1, initializer T2, f func(T2, T1) T2) T2 { |
| r := initializer |
| for _, v := range s { |
| r = f(r, v) |
| } |
| return r |
| } |
| |
| // Filter filters values from a slice using a filter function. |
| func Filter[T any](s []T, f func(T) bool) []T { |
| var r []T |
| for _, v := range s { |
| if f(v) { |
| r = append(r, v) |
| } |
| } |
| return r |
| } |