channel/find.go
2022-12-19 18:07:43 +01:00

41 lines
599 B
Go

package channel
func FindFirst[T any](source <-chan T) *T {
for v := range source {
return &v
}
return nil
}
func FindFirstAndFlush[T any](source <-chan T) *T {
for v := range source {
go Flush(source)
return &v
}
return nil
}
func FindLast[T any](source <-chan T) *T {
var last *T = new(T)
found := false
for v := range source {
*last = v
found = true
}
if !found {
return nil
}
return last
}
func HasAny[T any](source <-chan T) bool {
return FindFirst(source) != nil
}
func HasAnyAndFlush[T any](source <-chan T) bool {
return FindFirstAndFlush(source) != nil
}