jonmorehouse · September 14, 2023 15:14 · Sep 14, 2023
diff --git a/updated.go b/updated.go
@@ -0,0 +1,48 @@
+package main
+
+import "fmt"
+
+func SliceToGroupsUpdated[T any](slice []T, limit int) [][]T {
+	if limit < 1 {
+		limit = 1
+	}
+
+	matrix := [][]T{{}}
+	row := 0
+	for _, val := range slice {
+		matrix[row] = append(matrix[row], val)
+		if len(matrix[row]) == limit {
+			row++
+			matrix = append(matrix, []T{})
+		}
+	}
+
+	return matrix
+}
+
+func SliceToGroupsOrig[T any](vals []T, grpSize int) [][]T {
+	if grpSize < 1 {
+		grpSize = 1
+	}
+
+	grps := make([][]T, 0)
+	grp := make([]T, 0, grpSize)
+	for _, val := range vals {
+		grp = append(grp, val)
+
+		if len(grp) >= grpSize {
+			grps = append(grps, grp)
+			grp = make([]T, 0, grpSize)
+		}
+	}
+
+	return grps
+}
+
+func main() {
+	grps := SliceToGroupsUpdated([]string{"a", "b", "c"}, 0)
+	fmt.Println("updated", grps)
+
+	grps = SliceToGroupsOrig([]string{"a", "b", "c"}, 0)
+	fmt.Println("original", grps)
+}