initial

1 files changed, 23 insertions, 0 deletions

diff --git a/each.go b/each.go
new file mode 100644
index 0000000..d115054
--- /dev/null
+++ b/each.go
@@ -0,0 +1,23 @@
+package collection
+
+import "sync"
+
+func EachSync[T any](collection []T, cb func(item T, idx int)) {
+	for i, v := range collection {
+		cb(v, i)
+	}
+}
+
+func Each[T any](collection []T, cb func(item T, idx int)) {
+	wg := sync.WaitGroup{}
+	wg.Add(len(collection))
+	for i, v := range collection {
+		func(i int, v T) {
+			go func() {
+				defer wg.Done()
+				cb(v, i)
+			}()
+		}(i, v)
+	}
+	wg.Wait()
+}