lnd/fn/func.go
2024-01-23 19:09:42 -08:00

18 lines
404 B
Go

package fn
// Reducer represents a function that takes an accumulator and the value, then
// returns a new accumulator.
type Reducer[T, V any] func(accum T, value V) T
// Reduce takes a slice of something, and a reducer, and produces a final
// accumulated value.
func Reduce[T any, V any, S []V](s S, f Reducer[T, V]) T {
var accum T
for _, x := range s {
accum = f(accum, x)
}
return accum
}