diff --git a/file.go b/file.go
index c943d5b..6ca8730 100644
--- a/file.go
+++ b/file.go
@@ -43,9 +43,12 @@ func init() {
 		"mkdir": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 			args := gojs.MakeArgs(&argsIn, vm).Check(1)
 			if err := os.MkdirAll(args.Path(0), 0755); err != nil {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return vm.ToValue(false)
 			}
-			return nil
+			return vm.ToValue(true)
 		},
 		"read": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 			args := gojs.MakeArgs(&argsIn, vm).Check(1)
@@ -53,7 +56,10 @@ func init() {
 			if r, err := u.ReadFile(filename); err == nil {
 				return vm.ToValue(r)
 			} else {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return vm.ToValue("")
 			}
 		},
 		"readBytes": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
@@ -61,30 +67,45 @@ func init() {
 			if r, err := u.ReadFileBytes(args.Path(0)); err == nil {
 				return vm.ToValue(r)
 			} else {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return vm.ToValue([]byte{})
 			}
 		},
 		"write": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 			args := gojs.MakeArgs(&argsIn, vm).Check(2)
 			filename := args.Path(0)
 			if err := u.WriteFileBytes(filename, args.Bytes(1)); err == nil {
-				return nil
+				return vm.ToValue(true)
 			} else {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return vm.ToValue(false)
 			}
 		},
 		"dir": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 			args := gojs.MakeArgs(&argsIn, vm).Check(1)
-			if r, err := u.ReadDir(args.Path(0)); err == nil {
-				list := make([]map[string]any, len(r))
-				for i, info := range r {
-					list[i] = makeFileInfo(&info)
-				}
+			if list, err := listFile(args.Path(0), []map[string]any{}, args.Bool(1)); err == nil {
 				return vm.ToValue(list)
 			} else {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return vm.ToValue([]map[string]any{})
 			}
 		},
+		"join": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			args := gojs.MakeArgs(&argsIn, vm).Check(1)
+			parts := args.StrArray(0)
+			if os.PathSeparator != '/' {
+				for i := range parts {
+					parts[i] = strings.ReplaceAll(parts[i], "/", string(os.PathSeparator))
+				}
+			}
+			return vm.ToValue(filepath.Join(parts...))
+		},
 		"stat": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 			args := gojs.MakeArgs(&argsIn, vm).Check(1)
 			return vm.ToValue(makeFileInfo(u.GetFileInfo(args.Path(0))))
@@ -96,25 +117,34 @@ func init() {
 		"remove": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 			args := gojs.MakeArgs(&argsIn, vm).Check(1)
 			if err := os.RemoveAll(args.Path(0)); err == nil {
-				return nil
+				return vm.ToValue(true)
 			} else {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return vm.ToValue(false)
 			}
 		},
 		"rename": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 			args := gojs.MakeArgs(&argsIn, vm).Check(2)
 			if err := os.Rename(args.Path(0), args.Path(1)); err == nil {
-				return nil
+				return vm.ToValue(true)
 			} else {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return vm.ToValue(false)
 			}
 		},
 		"copy": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
 			args := gojs.MakeArgs(&argsIn, vm).Check(2)
 			if err := u.CopyFile(args.Path(0), args.Path(1)); err == nil {
-				return nil
+				return vm.ToValue(true)
 			} else {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return vm.ToValue(false)
 			}
 		},
 		"cache": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
@@ -193,11 +223,17 @@ func init() {
 			}
 			if err == nil {
 				if err = u.WriteFileBytes(gojs.FixPath(vm, filename), data); err != nil {
-					panic(vm.NewGoError(err))
+					// panic(vm.NewGoError(err))
+					vm.SetData("_lastError", err)
+					gojs.GetLogger(vm).Error(err.Error())
+					return vm.ToValue(false)
 				}
-				return nil
+				return vm.ToValue(true)
 			} else {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return nil
 			}
 		},
 		"load": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
@@ -213,10 +249,16 @@ func init() {
 				if err == nil {
 					return vm.ToValue(r)
 				} else {
-					panic(vm.NewGoError(err))
+					// panic(vm.NewGoError(err))
+					vm.SetData("_lastError", err)
+					gojs.GetLogger(vm).Error(err.Error())
+					return nil
 				}
 			} else {
-				panic(vm.NewGoError(err))
+				// panic(vm.NewGoError(err))
+				vm.SetData("_lastError", err)
+				gojs.GetLogger(vm).Error(err.Error())
+				return nil
 			}
 		},
 	}
@@ -232,14 +274,32 @@ func init() {
 
 func makeFileInfo(info *u.FileInfo) map[string]any {
 	return map[string]any{
-		"name":     info.Name,
-		"size":     info.Size,
-		"fullName": info.FullName,
-		"isDir":    info.IsDir,
-		"modTime":  info.ModTime.UnixMilli(),
+		"name":    info.Name,
+		"size":    info.Size,
+		"path":    info.FullName,
+		"isDir":   info.IsDir,
+		"modTime": info.ModTime.UnixMilli(),
 	}
 }
 
+func listFile(rootPath string, list []map[string]any, recursive bool) ([]map[string]any, error) {
+	var outErr error
+	if r, err := u.ReadDir(rootPath); err == nil {
+		for _, info := range r {
+			list = append(list, makeFileInfo(&info))
+			if recursive && info.IsDir {
+				list, err = listFile(info.FullName, list, recursive)
+				if err != nil {
+					outErr = err
+				}
+			}
+		}
+	} else {
+		outErr = err
+	}
+	return list, outErr
+}
+
 func searchFile(vm *goja.Runtime, searchPath, name string) string {
 	searchPath = gojs.FixPath(vm, searchPath)
 
diff --git a/file.ts b/file.ts
index 745ba1a..f906665 100644
--- a/file.ts
+++ b/file.ts
@@ -1,22 +1,23 @@
 // just for develop
 
 export default {
-    exists,
-    mkdir,
-    read,
-    readBytes,
-    write,
-    dir,
-    stat,
-    find,
-    remove,
-    rename,
-    copy,
-    cache,
-    load,
-    save,
-    searchFile,
-    loadConfig
+	exists,
+	mkdir,
+	read,
+	readBytes,
+	write,
+	dir,
+	join,
+	stat,
+	find,
+	remove,
+	rename,
+	copy,
+	cache,
+	load,
+	save,
+	searchFile,
+	loadConfig
 }
 
 function exists(filename: string): boolean { return false }
@@ -24,7 +25,8 @@ function mkdir(filename: string): void { }
 function read(filename: string): string { return '' }
 function readBytes(filename: string): any { return null }
 function write(filename: string, data: any): void { }
-function dir(filename: string): Array<FileInfo> { return null as any }
+function dir(filename: string, recursive?: boolean): Array<FileInfo> { return null as any }
+function join(...paths: string[]): string { return '' }
 function stat(filename: string): FileInfo { return null as any }
 function find(filename: string): string { return '' }
 function remove(filename: string): void { }
@@ -36,10 +38,10 @@ function save(filename: string, data: any) { }
 function searchFile(filename: string, searchPath?: string): string { return '' }
 function loadConfig(name: string): any { return null }
 
-interface FileInfo {
-    name: string
-    fullName: string
-    isDir: boolean
-    size: number
-    modTime: number
+export interface FileInfo {
+	name: string
+	fullName: string
+	isDir: boolean
+	size: number
+	modTime: number
 }
diff --git a/go.mod b/go.mod
index 7ef9a34..1926464 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module apigo.cc/gojs/file
 go 1.24.0
 
 require (
-	apigo.cc/gojs v0.0.30
+	apigo.cc/gojs v0.0.32
 	apigo.cc/gojs/console v0.0.4
 	github.com/ssgo/u v1.7.23
 	gopkg.in/yaml.v3 v3.0.1
@@ -15,9 +15,9 @@ require (
 	github.com/go-sourcemap/sourcemap v2.1.4+incompatible // indirect
 	github.com/google/pprof v0.0.0-20250903194437-c28834ac2320 // indirect
 	github.com/ssgo/config v1.7.10 // indirect
-	github.com/ssgo/log v1.7.9 // indirect
+	github.com/ssgo/log v1.7.10 // indirect
 	github.com/ssgo/standard v1.7.7 // indirect
 	github.com/ssgo/tool v0.4.29 // indirect
-	golang.org/x/sys v0.38.0 // indirect
-	golang.org/x/text v0.31.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
+	golang.org/x/text v0.32.0 // indirect
 )