feature: add delete by value in slice

CHANGELOG.md

@@ -1,5 +1,11 @@
 # go-utils
 
+<a name="v1.28.0"></a>
+## [v1.28.0] - 2022-11-04
+### New Features
+- add DeleteByValue
+
+
 <a name="v1.27.0"></a>
 ## [v1.27.0] - 2022-09-22
 ### New Features
@@ -58,11 +64,11 @@
 - fix marshal issue on gorm.DeletedAt empty value ([#32](https://github.com/kumparan/kumnats/issues/32))
 
 
-<a name="v.1.20.0"></a>
-## [v.1.20.0] - 2022-03-11
-
 <a name="v1.20.0"></a>
 ## [v1.20.0] - 2022-03-11
+
+<a name="v.1.20.0"></a>
+## [v.1.20.0] - 2022-03-11
 ### New Features
 - add constraint size gql directive ([#30](https://github.com/kumparan/kumnats/issues/30))
 
@@ -229,7 +235,8 @@
 - init go-utils
 
 
-[Unreleased]: https://github.com/kumparan/kumnats/compare/v1.27.0...HEAD
+[Unreleased]: https://github.com/kumparan/kumnats/compare/v1.28.0...HEAD
+[v1.28.0]: https://github.com/kumparan/kumnats/compare/v1.27.0...v1.28.0
 [v1.27.0]: https://github.com/kumparan/kumnats/compare/v1.26.0...v1.27.0
 [v1.26.0]: https://github.com/kumparan/kumnats/compare/v1.25.1...v1.26.0
 [v1.25.1]: https://github.com/kumparan/kumnats/compare/v1.25.0...v1.25.1
@@ -238,9 +245,9 @@
 [v1.23.0]: https://github.com/kumparan/kumnats/compare/v1.22.0...v1.23.0
 [v1.22.0]: https://github.com/kumparan/kumnats/compare/v1.21.0...v1.22.0
 [v1.21.0]: https://github.com/kumparan/kumnats/compare/v1.20.1...v1.21.0
-[v1.20.1]: https://github.com/kumparan/kumnats/compare/v.1.20.0...v1.20.1
-[v.1.20.0]: https://github.com/kumparan/kumnats/compare/v1.20.0...v.1.20.0
-[v1.20.0]: https://github.com/kumparan/kumnats/compare/v1.19.3...v1.20.0
+[v1.20.1]: https://github.com/kumparan/kumnats/compare/v1.20.0...v1.20.1
+[v1.20.0]: https://github.com/kumparan/kumnats/compare/v.1.20.0...v1.20.0
+[v.1.20.0]: https://github.com/kumparan/kumnats/compare/v1.19.3...v.1.20.0
 [v1.19.3]: https://github.com/kumparan/kumnats/compare/v1.19.2...v1.19.3
 [v1.19.2]: https://github.com/kumparan/kumnats/compare/v1.19.1...v1.19.2
 [v1.19.1]: https://github.com/kumparan/kumnats/compare/v1.19.0...v1.19.1

generic.go

@@ -76,3 +76,15 @@ func ValueOrDefault[T comparable](value, defaultValue T) T {
 
 	return value
 }
+
+// DeleteByValue use for delete value in slice
+func DeleteByValue[T comparable](a []T, x T) []T {
+	var newValue []T
+	for _, n := range a {
+		if x != n {
+			newValue = append(newValue, n)
+		}
+	}
+
+	return newValue
+}

generic_test.go

@@ -84,3 +84,42 @@ func Test_ValueOrDefault(t *testing.T) {
 	assert.EqualValues(t, 10.1, ValueOrDefault[float64](0.0, 10.1))
 	assert.EqualValues(t, 11.2, ValueOrDefault[float64](11.2, 10.1))
 }
+
+func Test_DeleteByValue(t *testing.T) {
+	int64s := []int64{1, 2, 3, 4, 5}
+	int64ExpectTrueDelete := []int64{2, 3, 4, 5}
+
+	int64sUnique := []int64{1, 2, 3, 4, 5, 1}
+	int64sUniqueExpectTrueDelete := []int64{2, 3, 4, 5}
+
+	int32s := []int32{1, 2, 3, 4, 5}
+	int32ExpectTrueDelete := []int32{1, 2, 4, 5}
+
+	strings := []string{"a", "be", "see", "deep"}
+	stringExpectTrueDelete := []string{"a", "be", "deep"}
+
+	float64s := []float64{1.1, 2.2, 3.3, 4.4, 5.5}
+	float64ExpectTrueDelete := []float64{1.1, 3.3, 4.4, 5.5}
+
+	float32s := []float32{1.2, 2.3, 3.4, 4.5, 5.6}
+	float32ExpectTrueDelete := []float32{1.2, 2.3, 3.4, 4.5}
+
+	assert.EqualValues(t, int64ExpectTrueDelete, DeleteByValue[int64](int64s, 1))
+	assert.EqualValues(t, int64s, DeleteByValue[int64](int64s, 10))
+
+	assert.EqualValues(t, int64sUniqueExpectTrueDelete, DeleteByValue[int64](int64sUnique, 1))
+	assert.EqualValues(t, int64sUnique, DeleteByValue[int64](int64sUnique, 10))
+
+	assert.EqualValues(t, int32ExpectTrueDelete, DeleteByValue[int32](int32s, 3))
+	assert.EqualValues(t, int32s, DeleteByValue[int32](int32s, 10))
+
+	assert.EqualValues(t, stringExpectTrueDelete, DeleteByValue[string](strings, "see"))
+	assert.EqualValues(t, strings, DeleteByValue[string](strings, "lol"))
+
+	assert.EqualValues(t, float64ExpectTrueDelete, DeleteByValue[float64](float64s, 2.2))
+	assert.EqualValues(t, float64s, DeleteByValue[float64](float64s, 5.7))
+
+	assert.EqualValues(t, float32ExpectTrueDelete, DeleteByValue[float32](float32s, 5.6))
+	assert.EqualValues(t, float32s, DeleteByValue[float32](float32s, 5.7))
+
+}