From 29af2702ee93f0a6f005bc8c8294202dcb281eda Mon Sep 17 00:00:00 2001
From: x5a17ed <0x5a17ed@tuta.io>
Date: Fri, 24 May 2024 15:55:47 +0200
Subject: [PATCH] add Any function

---
 itlib/each.go      |  6 ++++++
 itlib/each_test.go | 20 ++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/itlib/each.go b/itlib/each.go
index cbeaf50..9851b54 100644
--- a/itlib/each.go
+++ b/itlib/each.go
@@ -122,3 +122,9 @@ func Drop[T any](n uint, it itkit.Iterator[T]) itkit.Iterator[T] {
 	}
 	return it
 }
+
+// Any tests if any item in the iterator matches a predicate.
+func Any[T any](it itkit.Iterator[T], fn EachFn[T]) (ok bool) {
+	Each(it, func(x T) bool { ok = fn(x); return ok })
+	return
+}
diff --git a/itlib/each_test.go b/itlib/each_test.go
index cb5d7e8..5ad470f 100644
--- a/itlib/each_test.go
+++ b/itlib/each_test.go
@@ -204,3 +204,23 @@ func TestDrop(t *testing.T) {
 		assert.Equal(it.Value(), 4)
 	})
 }
+
+func TestAny(t *testing.T) {
+	type testCase[T any] struct {
+		name   string
+		args   []bool
+		wantOk bool
+	}
+	tt := []testCase[bool]{
+		{"false", []bool{false, false, false}, false},
+		{"true", []bool{false, false, true}, true},
+	}
+	for _, tt := range tt {
+		t.Run(tt.name, func(t *testing.T) {
+			got := itlib.Any(sliceit.In(tt.args), func(item bool) bool {
+				return item
+			})
+			assertpkg.Equal(t, tt.wantOk, got)
+		})
+	}
+}