✨ feat(structs): add new util func for check struct field is exported

structs/structs.go

@@ -5,3 +5,13 @@ package structs
 // func MapStruct(srcSt, dstSt any) {
 // 	// TODO
 // }
+
+// IsExported field name on struct
+func IsExported(fieldName string) bool {
+	return fieldName[0] >= 'A' && fieldName[0] <= 'Z'
+}
+
+// IsUnexported field name on struct
+func IsUnexported(fieldName string) bool {
+	return !IsExported(fieldName)
+}

structs/structs_test.go

@@ -1 +1,25 @@
 package structs_test
+
+import (
+	"testing"
+
+	"github.com/gookit/goutil/structs"
+	"github.com/gookit/goutil/testutil/assert"
+)
+
+func TestIsExported(t *testing.T) {
+	assert.True(t, structs.IsExported("Name"))
+	assert.True(t, structs.IsExported("Abc12"))
+	assert.True(t, structs.IsExported("A"))
+	assert.False(t, structs.IsExported("name"))
+	assert.False(t, structs.IsExported("_name"))
+	assert.False(t, structs.IsExported("abc12"))
+	assert.False(t, structs.IsExported("123abcd"))
+
+	assert.False(t, structs.IsUnexported("Name"))
+	assert.False(t, structs.IsUnexported("Abc12"))
+	assert.True(t, structs.IsUnexported("name"))
+	assert.True(t, structs.IsUnexported("_name"))
+	assert.True(t, structs.IsUnexported("abc12"))
+	assert.True(t, structs.IsUnexported("123abcd"))
+}