add new func & docs error repair (#153)

* feat: add method IsTargetType()

* docs:document error repair

structs/field.go

@@ -68,6 +68,11 @@ func (f *Field) IsSlice() bool {
 	return k == reflect.Slice
 }
 
+// IsTargetType check if a struct field type is target type or not
+func (f *Field) IsTargetType(targetType reflect.Kind) bool {
+	return f.rvalue.Kind() == targetType
+}
+
 // mapValue covert field value to map
 func (f *Field) mapValue(value any) any {
 	val := pointer.ExtractPointer(value)

structs/field_test.go

@@ -154,6 +154,25 @@ func TestField_IsSlice(t *testing.T) {
 	assert.Equal(true, a.IsSlice())
 }
 
+func TestField_IsTargetType(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestField_IsTargetType")
+
+	type Parent struct {
+		Name string
+		arr  []int
+	}
+
+	p1 := &Parent{Name: "test", arr: []int{1, 2, 3}}
+	s := New(p1)
+	n, _ := s.Field("Name")
+	a, _ := s.Field("arr")
+
+	assert.Equal(true, n.IsTargetType(reflect.String))
+	assert.Equal(true, a.IsTargetType(reflect.Slice))
+}
+
 func TestField_MapValue(t *testing.T) {
 	t.Parallel()