1 files changed, 21 insertions, 1 deletions
diff --git a/pkg/u/list.go b/pkg/u/list.go
index 39d7b11..1cffbd5 100644
--- a/pkg/u/list.go
+++ b/pkg/u/list.go
@@ -1,5 +1,25 @@
 package u
 
+func Filter[T any](v []T, f func(T) bool) []T {
+	var result []T
+
+	for _, s := range v {
+		if f(s) {
+			result = append(result, s)
+		}
+	}
+
+	return result
+}
+
+func Map[T any, V any](a []T, f func(T) V) []V {
+	result := make([]V, len(a))
+	for i, v := range a {
+		result[i] = f(v)
+	}
+	return result
+}
+
 func First[T any](v []T) (T, bool) {
 	if len(v) == 0 {
 		var zero T
@@ -25,7 +45,7 @@ func LastOrZero[T any](v []T) T {
 }
 
 func ChunkBy[T any](items []T, chunkSize int) [][]T {
-	var chunks = make([][]T, 0, (len(items)/chunkSize)+1)
+	chunks := make([][]T, 0, (len(items)/chunkSize)+1)
 	for chunkSize < len(items) {
 		items, chunks = items[chunkSize:], append(chunks, items[0:chunkSize:chunkSize])
 	}