27 lines
547 B
Go
27 lines
547 B
Go
package collection
|
|
|
|
import "sync"
|
|
|
|
func MapSync[T any, R any](collection []T, cb func(item T, idx int) R) []R {
|
|
result := make([]R, len(collection))
|
|
for i, v := range collection {
|
|
result[i] = cb(v, i)
|
|
}
|
|
return result
|
|
}
|
|
|
|
func Map[T any, R any](collection []T, cb func(item T, idx int) R) []R {
|
|
result := make([]R, len(collection))
|
|
wg := sync.WaitGroup{}
|
|
wg.Add(len(collection))
|
|
for i, v := range collection {
|
|
func(v T, i int) {
|
|
go func() {
|
|
defer wg.Done()
|
|
result[i] = cb(v, i)
|
|
}()
|
|
}(v, i)
|
|
}
|
|
wg.Wait()
|
|
return result
|
|
}
|